diff --git a/example/photocatalysis_example.ttl b/example/photocatalysis_example.ttl
index 3d8b028..73487b3 100644
--- a/example/photocatalysis_example.ttl
+++ b/example/photocatalysis_example.ttl
@@ -2,560 +2,559 @@
 @prefix dcterms: <http://purl.org/dc/terms/> .
 @prefix owl: <http://www.w3.org/2002/07/owl#> .
 @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix schema: <https://schema.org/> .
 @prefix skos: <http://www.w3.org/2004/02/skos/core#> .
 @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
-@prefix sdo: <https://schema.org/> .
 
 <https://example.org/0000004> a skos:Concept ;
     dcterms:identifier "0000004"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000005> ;
     skos:broader <https://example.org/0000003> ;
     skos:definition "A chemical compound formed by the reaction of a metal with oxygen."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "metal oxide"@en .
 
 <https://example.org/0000006> a skos:Concept ;
     dcterms:identifier "0000006"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000007> ;
     skos:altLabel "EF"@en ;
     skos:broader <https://example.org/0000005> ;
     skos:definition "The energy level in a semiconductor where the probability of finding an electron is 0.5. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "Fermi level"@en .
 
 <https://example.org/0000007> a skos:Concept ;
     dcterms:identifier "0000007"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000008> ;
     skos:broader <https://example.org/0000005> ;
     skos:definition "The degree of a three-dimensional structural order of atoms which constitute the crystal lattice of a material."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "crystallinity"@en .
 
 <https://example.org/0000008> a skos:Concept ;
     dcterms:identifier "0000008"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000009> ;
     skos:broader <https://example.org/0000005> ;
     skos:definition "Pore size distribution refers to the range of pore sizes in a material. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "pore size distribution"@en .
 
 <https://example.org/0000009> a skos:Concept ;
     dcterms:identifier "0000009"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000010> ;
     skos:altLabel "energy bandgap; Eg"@en ;
     skos:broader <https://example.org/0000005> ;
     skos:definition "The energy difference between a semiconductor’s valence band top and conduction band bottom, which is required to excite an electron from the former to the latter.  "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "bandgap energy"@en .
 
 <https://example.org/0000010> a skos:Concept ;
     dcterms:identifier "0000010"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000011> ;
     skos:altLabel "VB"@en ;
     skos:broader <https://example.org/0000005> ;
     skos:definition "The band of energy levels in a solid fully occupied by electrons at 0 K (273.15 °C)."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "valence band"@en .
 
 <https://example.org/0000011> a skos:Concept ;
     dcterms:identifier "0000011"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000012> ;
     skos:altLabel "CB"@en ;
     skos:broader <https://example.org/0000005> ;
     skos:definition "The energy band of electronic levels of partially or fully filled mobile electrons in a metal or a semiconductor. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "conduction band"@en .
 
 <https://example.org/0000012> a skos:Concept ;
     dcterms:identifier "0000012"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000013> ;
     skos:altLabel "SSA"@en ;
     skos:broader <https://example.org/0000005> ;
     skos:definition "Α measure of the total surface area of a material per unit mass or volume."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "specific surface area"@en .
 
 <https://example.org/0000014> a skos:Concept ;
     dcterms:identifier "0000014"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000015> ;
     skos:broader <https://example.org/0000013> ;
     skos:definition "The introduction of foreign atoms into a semiconductor leading to the formation of new energy levels and charge concentrations."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "doping"@en .
 
 <https://example.org/0000017> a skos:Concept ;
     dcterms:identifier "0000017"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000018> ;
     skos:broader <https://example.org/0000016> ;
     skos:definition "Mass of a powdered photocatalyst used for an experiment."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "powder mass"@en .
 
 <https://example.org/0000020> a skos:Concept ;
     dcterms:identifier "0000020"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000021> ;
     skos:altLabel "spray-coating"@en ;
     skos:broader <https://example.org/0000019> ;
     skos:definition "A technique used to deposit uniform thin films onto a substrate by spraying a solution of the material onto the surface."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "spray coating"@en .
 
 <https://example.org/0000021> a skos:Concept ;
     dcterms:identifier "0000021"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000022> ;
     skos:broader <https://example.org/0000019> ;
     skos:definition "A tape-casting method used to deposit thin films of a photocatalyst onto the surface of a substrate."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "doctor blading"@en .
 
 <https://example.org/0000022> a skos:Concept ;
     dcterms:identifier "0000022"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000023> ;
     skos:altLabel "spin casting"@en,
         "spin-casting"@en,
         "spin-coating"@en ;
     skos:broader <https://example.org/0000019> ;
     skos:definition "A technique used to deposit uniform thin films onto a substrate (e.g., metal or glass) by spinning at high speeds a solution (paste) of the material onto the surface."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "spin coating"@en .
 
 <https://example.org/0000025> a skos:Concept ;
     dcterms:identifier "0000025"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000026> ;
     skos:broader <https://example.org/0000024> ;
     skos:definition "A  flat surface made of a metal (e.g., titanium, stainless steel) serving as a substrate for the deposition of a photocatalyst."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "metallic substrate"@en .
 
 <https://example.org/0000027> a skos:Concept ;
     dcterms:identifier "0000027"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000028> ;
     skos:altLabel "FTO; FTO glass"@en ;
     skos:broader <https://example.org/0000026> ;
     skos:definition "Transparent conductive metal oxide (fluorine doped tin oxide) that can be used in the fabrication of transparent electrodes for thin films."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "fluorine doped tin oxide coated glass"@en .
 
 <https://example.org/0000028> a skos:Concept ;
     dcterms:identifier "0000028"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000029> ;
     skos:altLabel "ITO; ITO glass"@en ;
     skos:broader <https://example.org/0000026> ;
     skos:definition "Transparent conductive metal oxide (indium tin oxide) that can be used in the fabrication of transparent electrodes for thin films."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "indium tin oxide coated glass"@en .
 
 <https://example.org/0000029> a skos:Concept ;
     dcterms:identifier "0000029"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000030> ;
     skos:broader <https://example.org/0000026> ;
     skos:definition "A resistant to thermal shock type of glass, composed mainly of silica and boron trioxide."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "borosilicate glass"@en .
 
 <https://example.org/0000030> a skos:Concept ;
     dcterms:identifier "0000030"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000031> ;
     skos:altLabel "quartz"@en ;
     skos:broader <https://example.org/0000026> ;
     skos:definition "A type of pure silicon dioxide, highly crystalline glass that allows the transmission of light in the UV wavelength range."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "quartz glass"@en .
 
 <https://example.org/0000031> a skos:Concept ;
     dcterms:identifier "0000031"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000032> ;
     skos:broader <https://example.org/0000024> ;
     skos:definition "A  surface made of a ceramic material (e.g., alumina) serving as a substrate for the deposition of a photocatalyst."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "ceramic substrate"@en .
 
 <https://example.org/0000033> a skos:Concept ;
     dcterms:identifier "0000033"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000034> ;
     skos:broader <https://example.org/0000032> ;
     skos:definition "The width of the substrate."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "substrate width"@en .
 
 <https://example.org/0000034> a skos:Concept ;
     dcterms:identifier "0000034"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000035> ;
     skos:broader <https://example.org/0000032> ;
     skos:definition "The depth of the substrate."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "substrate depth"@en .
 
 <https://example.org/0000035> a skos:Concept ;
     dcterms:identifier "0000035"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000036> ;
     skos:broader <https://example.org/0000032> ;
     skos:definition "The thickness of the substrate."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "substrate thickness"@en .
 
 <https://example.org/0000036> a skos:Concept ;
     dcterms:identifier "0000036"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000037> ;
     skos:altLabel "substrate surface area"@en ;
     skos:broader <https://example.org/0000032> ;
     skos:definition "The surface area of the substrate."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "substrate area"@en .
 
 <https://example.org/0000038> a skos:Concept ;
     dcterms:identifier "0000038"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000039> ;
     skos:broader <https://example.org/0000037> ;
     skos:definition "Mass of catalyst deposited onto the surface of a substrate."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "thin film mass"@en .
 
 <https://example.org/0000040> a skos:Concept ;
     dcterms:identifier "0000040"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000041> ;
     skos:broader <https://example.org/0000039> ;
     skos:definition "The width of the film of the deposited photocatalyst."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "thin film width"@en .
 
 <https://example.org/0000041> a skos:Concept ;
     dcterms:identifier "0000041"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000042> ;
     skos:broader <https://example.org/0000039> ;
     skos:definition "The thickness of the film of the deposited photocatalyst. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "thin film thickness"@en .
 
 <https://example.org/0000042> a skos:Concept ;
     dcterms:identifier "0000042"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000043> ;
     skos:broader <https://example.org/0000039> ;
     skos:definition "The depth of the film of the deposited photocatalyst."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "thin film depth"@en .
 
 <https://example.org/0000043> a skos:Concept ;
     dcterms:identifier "0000043"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000044> ;
     skos:broader <https://example.org/0000039> ;
     skos:definition "The area of the substrate covered by the deposited photocatalyst."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "thin film area"@en .
 
 <https://example.org/0000063> a skos:Concept ;
     dcterms:identifier "0000063"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000085> ;
     skos:broader <https://example.org/0000062> ;
     skos:definition "Τhe lowest energy state of a system. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "ground state"@en .
 
 <https://example.org/0000064> a skos:Concept ;
     dcterms:identifier "0000064"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000086> ;
     skos:broader <https://example.org/0000062> ;
     skos:definition "Τhe temporary state of a system with higher energy than its ground state caused by an external factor. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "excited state"@en .
 
 <https://example.org/0000066> a skos:Concept ;
     dcterms:identifier "0000066"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000088> ;
     skos:broader <https://example.org/0000065> ;
     skos:definition "The transfer of an electron initiated by the absorption of a photon of sufficient energy. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "photoinduced electron transfer"@en .
 
 <https://example.org/0000067> a skos:Concept ;
     dcterms:identifier "0000067"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000089> ;
     skos:broader <https://example.org/0000065> ;
     skos:definition "The transfer of a hole initiated by the absorption of a photon of sufficient energy. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "photoinduced hole transfer"@en .
 
 <https://example.org/0000068> a skos:Concept ;
     dcterms:identifier "0000068"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000090> ;
     skos:altLabel "charge photogeneration; photogenerated charges; charge photo-generation; electron excitation; electron-hole pair;"@en ;
     skos:broader <https://example.org/0000065> ;
     skos:definition "The generation of electron - hole pairs in a semiconductor as a result of light absorption of sufficient energy to overcome the bandgap energy. Electrons (negative charge) get excited to the conduction band, while holes (positive charge) remain in the valence band. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "photoinduced charge generation"@en .
 
 <https://example.org/0000069> a skos:Concept ;
     dcterms:identifier "0000069"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000091> ;
     skos:broader <https://example.org/0000065> ;
     skos:definition "The process by which photogenerated charges (electrons and holes) in a semiconductor recombine, resulting in the dissipation of energy in the form of e.g., heat or light. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "charge recombination"@en .
 
 <https://example.org/0000070> a skos:Concept ;
     dcterms:identifier "0000070"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000092> ;
     skos:broader <https://example.org/0000065> ;
     skos:definition "Absorption is the process in which energy (e.g., photons) or an absorbent (e.g., a gas) is taken up by an absorbate. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "absorption"@en .
 
 <https://example.org/0000071> a skos:Concept ;
     dcterms:identifier "0000071"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000093> ;
     skos:broader <https://example.org/0000065> ;
     skos:definition "The binding (strong or weak) of a pollutant or a reactant molecule on the surface of a photocatalyst which facilitates the performance of photocatalytic reactions."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "adsorption"@en .
 
 <https://example.org/0000072> a skos:Concept ;
     dcterms:identifier "0000072"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000094> ;
     skos:broader <https://example.org/0000065> ;
     skos:definition "The process under which reactants, intermediates and products are released from the surface of the photocatalyst. Desoprtion can be facilitated by an increase in temperature or a change in the pH."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "desorption"@en .
 
 <https://example.org/0000073> a skos:Concept ;
     dcterms:identifier "0000073"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000095> ;
     skos:broader <https://example.org/0000065> ;
     skos:definition "The process of separating positive and negative charges in a semiconductor, typically as a result of an external force, (e.g., photoexcitation). "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "charge separation"@en .
 
 <https://example.org/0000074> a skos:Concept ;
     dcterms:identifier "0000074"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000096> ;
     skos:altLabel "photo-excitation"@en ;
     skos:broader <https://example.org/0000065> ;
     skos:definition "The state caused by the transition of electrons from the valence band top to the conduction band bottom by absorption of photons of sufficient energy.  "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "photoexcitation"@en .
 
 <https://example.org/0000075> a skos:Concept ;
     dcterms:identifier "0000075"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000097> ;
     skos:broader <https://example.org/0000065> ;
     skos:definition "The loss of electrons or an increase in the oxidation state of a species. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "oxidation"@en .
 
 <https://example.org/0000077> a skos:Concept ;
     dcterms:identifier "0000077"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000099> ;
     skos:altLabel "photocatalytic carbon dioxide reduction; CO2 photoreduction; carbon dioxide photoreduction; artificial photosynthesis"@en ;
     skos:broader <https://example.org/0000076> ;
     skos:definition "The light-driven reduction (conversion) of carbon dioxide (CO2) to hydrocarbons and / or platform chemicals in presence of water. The absorption of light and the adsorption of the reactants is performed by a photocatalyst (usually a metal oxide). "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "photocatalytic CO2 reduction"@en .
 
 <https://example.org/0000084> a skos:Concept ;
     dcterms:identifier "0000084"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000153> ;
     skos:broader <https://example.org/0000083> ;
     skos:definition "Volume of the reaction chamber, calculated by its dimensions. Volume of pipes and valves connected to the reaction chamber should also be calculated and added to the total volume. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "reaction chamber volume"@en .
 
 <https://example.org/0000085> a skos:Concept ;
     dcterms:identifier "0000085"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000154> ;
     skos:broader <https://example.org/0000083> ;
     skos:definition "Height, width and depth (in cubic- or rectangular- shaped reaction chambers) or diameter and height (in cylindrer - shaped reaction chambers)"@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "reaction chamber dimension"@en .
 
 <https://example.org/0000086> a skos:Concept ;
     dcterms:identifier "0000086"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000155> ;
     skos:broader <https://example.org/0000083> ;
     skos:definition "The shape of the reaction chamber. In gas-phase reactions, reaction chambers have usually a cylindrical, cubical or rectangular shape."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "reaction chamber shape"@en .
 
 <https://example.org/0000087> a skos:Concept ;
     dcterms:identifier "0000087"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000156> ;
     skos:broader <https://example.org/0000083> ;
     skos:definition "Material used for the construction of the main body of the reaction chamber."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "reaction chamber material"@en .
 
 <https://example.org/0000089> a skos:Concept ;
     dcterms:identifier "0000089"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000158> ;
     skos:broader <https://example.org/0000088> ;
     skos:definition "Material that the window is made of. The window, usually attached to the lid sealing the reaction chamber, allows for the incoming light to enter the reaction chamber and interact with the photocatalyst. The material of the window influences the wavelenth range the the photocatalyst experieneces. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "optical window material"@en .
 
 <https://example.org/0000091> a skos:Concept ;
     dcterms:identifier "0000091"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000160> ;
     skos:broader <https://example.org/0000090> ;
     skos:definition "Diameter of the optical window allowing the incoming light to enter the reaction chamber and interact with the photocatalyst."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "optical window diameter"@en .
 
 <https://example.org/0000092> a skos:Concept ;
     dcterms:identifier "0000092"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000161> ;
     skos:broader <https://example.org/0000090> ;
     skos:definition "Thickness of the optical window allowing the incoming light to enter the reaction chamber and interact with the photocatalyst."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "optical window thickness"@en .
 
 <https://example.org/0000095> a skos:Concept ;
     dcterms:identifier "0000095"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000167> ;
     skos:altLabel "Hg-Xe lamp"@en,
         "Hg/Xe lamp"@en,
         "mercury xenon lamp"@en ;
     skos:broader <https://example.org/0000094> ;
     skos:definition "A lamp containing a mixture of mercury (Hg) and xenon (Xe) gases. Under electric current, the gas mixture gets ionized through a discharge electric charge creating a plasma generating UV and visible light. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "mercury-xenon lamp"@en .
 
 <https://example.org/0000096> a skos:Concept ;
     dcterms:identifier "0000096"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000168> ;
     skos:altLabel "Xe lamp"@en,
         "Xe-lamp"@en ;
     skos:broader <https://example.org/0000094> ;
     skos:definition "A lamp containing pure xenon (Xe) gas. Under electric current, the gas mixture gets ionized through a discharge electric charge creating a plasma generating UV and visible light. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "xenon lamp"@en .
 
 <https://example.org/0000097> a skos:Concept ;
     dcterms:identifier "0000097"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000169> ;
     skos:altLabel "LED"@en,
         "light-emitting diode"@en ;
     skos:broader <https://example.org/0000094> ;
     skos:definition "A solid-state semiconductor emitting light at highly controllable (narrow) wavelength ranges."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "light emitting diode"@en .
 
 <https://example.org/0000099> a skos:Concept ;
     dcterms:identifier "0000099"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000171> ;
     skos:broader <https://example.org/0000098> ;
     skos:definition "The distance of the light source from the reaction chamber and the photocatalyst."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "light source distance"@en .
 
 <https://example.org/0000100> a skos:Concept ;
     dcterms:identifier "0000100"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000172> ;
     skos:broader <https://example.org/0000098> ;
     skos:definition "The value of current (usually in A or mA) used to operate the selected light source."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "light operation current"@en .
 
 <https://example.org/0000101> a skos:Concept ;
     dcterms:identifier "0000101"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000173> ;
     skos:broader <https://example.org/0000098> ;
     skos:definition "The value of voltage  (usually in V or mV) used to operate the selected light source."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "light operation voltage"@en .
 
 <https://example.org/0000102> a skos:Concept ;
     dcterms:identifier "0000102"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000174> ;
     skos:broader <https://example.org/0000098> ;
     skos:definition "The power of the light source (usually in W or mW). The power can be calculated by the multiplication of the current and voltage used to operate the light source,"@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "light power output"@en .
 
 <https://example.org/0000103> a skos:Concept ;
     dcterms:identifier "0000103"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000175> ;
     skos:broader <https://example.org/0000098> ;
     skos:definition "The light intensity (usually in mW cm-2) of the selected light source. The light intensity should be measured at the same distance as the one between the light source and the reaction chamber / sample."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "light intensity"@en .
 
 <https://example.org/0000105> a skos:Concept ;
     dcterms:identifier "0000105"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000177> ;
     skos:altLabel "IR; Ir"@en ;
     skos:broader <https://example.org/0000104> ;
     skos:definition "Electromagnetic radiation with wavelengths typically in the range of 800 nm - 20000 nm."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "infrared"@en .
 
 <https://example.org/0000106> a skos:Concept ;
     dcterms:identifier "0000106"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000178> ;
     skos:altLabel "Vis; VIS"@en ;
     skos:broader <https://example.org/0000104> ;
     skos:definition "Electromagnetic radiation with wavelengths visible to the human eye, typically in the range of 400-800 nm. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "visible"@en .
 
 <https://example.org/0000107> a skos:Concept ;
     dcterms:identifier "0000107"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000179> ;
     skos:altLabel "UV"@en,
         "UV-A"@en,
@@ -564,16 +563,17 @@
         "VUV"@en ;
     skos:broader <https://example.org/0000104> ;
     skos:definition "Electromagnetic radiation with a wavelength typically in the range of 100-400 nanometers."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "ultraviolet"@en .
 
 <https://example.org/0000108> a skos:Collection ;
-    rdfs:isDefinedBy <https://example.org> ;
-    skos:inScheme <https://example.org> ;
     dcterms:identifier "0000108"^^xsd:token ;
     dcterms:isPartOf <https://example.org> ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
+    rdfs:isDefinedBy <https://example.org> ;
     skos:definition "A collection of concepts referring to material  characterization techniques and methods to evaluate their efficiency in photocatalysis."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
+    skos:inScheme <https://example.org> ;
     skos:member <https://example.org/0000045>,
         <https://example.org/0000046>,
         <https://example.org/0000047>,
@@ -596,39 +596,42 @@
         <https://example.org/0000082> ;
     skos:prefLabel "Characterization and evaluation techniques"@en .
 
+<http://example.org/nfdi4cat/> a schema:Organization ;
+    schema:name "http://example.org/nfdi4cat/"@en ;
+    schema:url "http://example.org/nfdi4cat/"^^xsd:anyURI .
+
 <https://example.org/0000003> a skos:Concept ;
     dcterms:identifier "0000003"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000004> ;
     skos:broader <https://example.org/0000002> ;
     skos:definition "Broad families of semiconduction materials (e.g., metal oxides) that can be used as photocatalysts in various applications."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000004> ;
     skos:prefLabel "categories of semiconductors"@en .
 
 <https://example.org/0000013> a skos:Concept ;
     dcterms:identifier "0000013"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000014> ;
     skos:broader <https://example.org/0000002> ;
     skos:definition "Techniques used to modify the properties of a photocatalyst, with the aim to increase its efficiency in a photocatalytic application. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000014> ;
     skos:prefLabel "modification technique"@en .
 
 <https://example.org/0000016> a skos:Concept ;
     dcterms:identifier "0000016"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000017> ;
     skos:broader <https://example.org/0000015> ;
     skos:definition "A photocatalyst introduced to the reaction chamber in the form of a powder. Usually the powdered photocatalyst is spread inside a quartz / glass plate."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000017> ;
     skos:prefLabel "powdered photocatalyst"@en .
 
 <https://example.org/0000045> a skos:Concept ;
     dcterms:identifier "0000045"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000067> ;
     skos:altLabel "X-ray emission spectrometry"@en,
         "X-ray fluorescence spectrometry; X-ray fluorescence spectroscopy"@en,
@@ -639,22 +642,22 @@
         "XRF spectroscopy"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "A non-destructive analytical technique which uses a high-energy X-ray source to expose a material and monitors the emitted characteristic fluorescent X-Rays.  "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "X-ray fluorescence"@en .
 
 <https://example.org/0000046> a skos:Concept ;
     dcterms:identifier "0000046"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000068> ;
     skos:altLabel "EELS"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "An analytical technique used to measure the energy loss of electrons passing through a sample. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "electron energy loss spectroscopy"@en .
 
 <https://example.org/0000047> a skos:Concept ;
     dcterms:identifier "0000047"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000069> ;
     skos:altLabel "RAMAN"@en,
         "Raman"@en,
@@ -663,12 +666,12 @@
         "raman scattering spectroscopy"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "A spectroscopy technique studying the vibrational modes of molecules, by measuring the intensity and frequency of scattered by the sample of monochromatic light. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "Raman spectroscopy"@en .
 
 <https://example.org/0000048> a skos:Concept ;
     dcterms:identifier "0000048"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000070> ;
     skos:altLabel "AFM"@en,
         "SFM"@en,
@@ -677,24 +680,24 @@
         "scanning force microscopy"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "A high-resolution imaging technique that measures the interaction between a sharp probe and the sample’s surface to create a three-dimensional image of the surface’s morphology.  "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "atomic force microscopy"@en .
 
 <https://example.org/0000049> a skos:Concept ;
     dcterms:identifier "0000049"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000071> ;
     skos:altLabel "DSC"@en,
         "differential scanning calorimetric (DSC) analysis"@en,
         "differential scanning calorimetric analysis"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "A thermal analysis technique which compares the heat flow in a sample and a reference material under controlled applied temperature profiles. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "differential scanning calorimetry"@en .
 
 <https://example.org/0000050> a skos:Concept ;
     dcterms:identifier "0000050"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000072> ;
     skos:altLabel "TG"@en,
         "TG analysis"@en,
@@ -706,52 +709,52 @@
         "thermogravimetric (TG) analysis"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "A thermal analysis technique used to measure the change of a sample’s mass under the influence of controlled applied temperature profiles."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "thermogravimetric analysis"@en .
 
 <https://example.org/0000051> a skos:Concept ;
     dcterms:identifier "0000051"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000073> ;
     skos:altLabel "NMR"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "A spectroscopic technique that uses a static magnetic field and radiofrequency radiation to measure the magnetic resonance of atomic nuclei protons or electrons."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "nuclear magnetic resonance spectroscopy"@en .
 
 <https://example.org/0000052> a skos:Concept ;
     dcterms:identifier "0000052"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000074> ;
     skos:altLabel "PL"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "Light emission of lower energy photons from a sample upon its photoexcitation. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "photoluminescence"@en .
 
 <https://example.org/0000053> a skos:Concept ;
     dcterms:identifier "0000053"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000075> ;
     skos:altLabel "SEM"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "An electron microscopy technique that produces high-resolution images under high magnification of a sample's surface by assessing the secondary and back-scattered electrons produced by a focused electron beam."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "scanning electron microscopy"@en .
 
 <https://example.org/0000054> a skos:Concept ;
     dcterms:identifier "0000054"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000076> ;
     skos:altLabel "XPS"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "A technique that analyzes the chemical composition of an X-ray irradiated sample by measuring the energies of the emitted electrons."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "X-ray photoelectron spectroscopy"@en .
 
 <https://example.org/0000055> a skos:Concept ;
     dcterms:identifier "0000055"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000077> ;
     skos:altLabel "X-ray analysis"@en,
         "X-ray crystallographic analysis"@en,
@@ -762,32 +765,32 @@
         "XRD"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "A technique which analyses the diffraction pattern produced when X-rays are scattered by a sample bombarded by a focused electron beam."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "X-ray diffraction"@en .
 
 <https://example.org/0000056> a skos:Concept ;
     dcterms:identifier "0000056"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000078> ;
     skos:altLabel "TEM"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "Transmission electron microscopy is a technique that produces high-resolution images if the internal structure of a sample by using a beam of electrons to bombard the thin sample and measuring the intensity of the scattered transmitted electrons."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "transmission electron microscopy"@en .
 
 <https://example.org/0000057> a skos:Concept ;
     dcterms:identifier "0000057"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000079> ;
     skos:altLabel "UV-Vis"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "A technique used to measure the absorption, transmission or reflectance of light by a sample in the ultraviolet and visible regions of the electromagnetic spectrum."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "ultraviolet-visible spectroscopy"@en .
 
 <https://example.org/0000058> a skos:Concept ;
     dcterms:identifier "0000058"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000080> ;
     skos:altLabel "FT-IR"@en,
         "FT-IR spectroscopy"@en,
@@ -802,85 +805,86 @@
         "Fourier-transform infrared (FTIR) absorption spectroscopy"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "A spectroscopic technique used to study the vibrational modes of chemical bonds of a sample using infrared radiation."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "fourier transform infrared spectroscopy"@en .
 
 <https://example.org/0000059> a skos:Concept ;
     dcterms:identifier "0000059"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000081> ;
     skos:altLabel "BET"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "The study of physical adsorption of gas molecules on a solid surface for the calculation of the specific surface area of materials."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "Brunauer-Emmett-Teller surface area analysis"@en .
 
 <https://example.org/0000060> a skos:Concept ;
     dcterms:identifier "0000060"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000082> ;
     skos:altLabel "CV"@en,
         "cyclovoltammetry"@en ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "An electrochemical technique used to study the redox properties of a sample by measuring the current produced by an applied voltage sweep."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "cyclic voltammetry"@en .
 
 <https://example.org/0000061> a skos:Concept ;
     dcterms:identifier "0000061"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000083> ;
     skos:broader <https://example.org/0000044> ;
     skos:definition "A method used in cyclic voltammetry to determine the charge carrier concentration and the flat-band potential of an electrochemical system by measuring the capacitance as a function of applied voltage."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "Mott-Schottky analysis"@en .
 
 <https://example.org/0000076> a skos:Concept ;
     dcterms:identifier "0000076"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000098> ;
     skos:broader <https://example.org/0000065> ;
     skos:definition "The gain of electrons or a decrease in the oxidation state of a species. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000077> ;
     skos:prefLabel "reduction"@en .
 
 <https://example.org/0000080> a skos:Concept ;
     dcterms:identifier "0000080"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000130> ;
     skos:altLabel "GC"@en ;
     skos:broader <https://example.org/0000079> ;
     skos:definition "An analytical technique that separates and analyzes the components of a gas mixture by passing it though a stationary phase."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "gas chromatography"@en .
 
 <https://example.org/0000081> a skos:Concept ;
     dcterms:identifier "0000081"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000137> ;
     skos:altLabel "MS"@en ;
     skos:broader <https://example.org/0000079> ;
     skos:definition "An analytical technique which determines the mass-to-charge ratio of ions in a sample to give information about the composition of the sample."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "mass spectrometry"@en .
 
 <https://example.org/0000082> a skos:Concept ;
     dcterms:identifier "0000082"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000141> ;
     skos:altLabel "LC"@en ;
     skos:broader <https://example.org/0000079> ;
     skos:definition "A sepation technique that uses a liquid mobile phase to separate the components of a mixture based on their interactions with a stationary phase and a mobile phase. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:prefLabel "liquid chromatography"@en .
 
 <https://example.org/0000015> a skos:Concept ;
     dcterms:identifier "0000015"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000016> ;
     skos:broader <https://example.org/0000001> ;
     skos:definition "The form in which the photocatalyst is introduced to the reaction chamber. This can include e.g., powders, pellets or thin films deposited on a substrate. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000016>,
         <https://example.org/0000018> ;
@@ -888,10 +892,10 @@
 
 <https://example.org/0000023> a skos:Concept ;
     dcterms:identifier "0000023"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000024> ;
     skos:broader <https://example.org/0000018> ;
     skos:definition "The substrate onto which a (powdered) photocatalyst is deposited. Such substrates include glass surfaces (e.g., borosilicate glass or conductive glass like ITO and FTO), ceramic substrates (e.g., alumina) or metal substrates (e.g., Ti foils, stainless steel etc.) "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000024>,
         <https://example.org/0000032> ;
@@ -899,10 +903,10 @@
 
 <https://example.org/0000037> a skos:Concept ;
     dcterms:identifier "0000037"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000038> ;
     skos:broader <https://example.org/0000018> ;
     skos:definition "A thin film of the photocatalyst deposited on an appropriate for the application substrate."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000038>,
         <https://example.org/0000039> ;
@@ -910,9 +914,9 @@
 
 <https://example.org/0000062> a skos:Concept ;
     dcterms:identifier "0000062"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000084> ;
     skos:definition "The energy state occupied by an electron in a photocatalyst. This state cab affect the electron's ability to participate in a photocatalytic reaction. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000063>,
         <https://example.org/0000064> ;
@@ -921,10 +925,10 @@
 
 <https://example.org/0000088> a skos:Concept ;
     dcterms:identifier "0000088"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000157> ;
     skos:broader <https://example.org/0000083> ;
     skos:definition "A transparent material optimized to allow the transmission of electromagnetic radiation with low reflectance and scattering. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000089>,
         <https://example.org/0000090> ;
@@ -932,10 +936,10 @@
 
 <https://example.org/0000090> a skos:Concept ;
     dcterms:identifier "0000090"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000159> ;
     skos:broader <https://example.org/0000088> ;
     skos:definition "The dimension of the optical window (diameter / thickness) allowing the incoming light to enter the reaction chamber and interact with the photocatalyst."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000091>,
         <https://example.org/0000092> ;
@@ -943,10 +947,10 @@
 
 <https://example.org/0000093> a skos:Concept ;
     dcterms:identifier "0000093"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000165> ;
     skos:broader <https://example.org/0000078> ;
     skos:definition "The irradiation system includes all the necessary equipment needed to perform a photocatalytic experiment. The system apart from the light source can include, filters, power units, lamp cooling devices etc."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000094>,
         <https://example.org/0000098> ;
@@ -954,10 +958,10 @@
 
 <https://example.org/0000001> a skos:Concept ;
     dcterms:identifier "0000001"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000002> ;
     skos:altLabel "photocatalytic material"@en ;
     skos:definition "A material that absorbs photons (light) of appropriate energy and initiates or accelerates a photochemical reaction, while it regenerates itself after each reaction cycle. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000002>,
         <https://example.org/0000015>,
@@ -967,10 +971,10 @@
 
 <https://example.org/0000002> a skos:Concept ;
     dcterms:identifier "0000002"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000003> ;
     skos:broader <https://example.org/0000001> ;
     skos:definition "A material with electrical conductivity between that of a conductor and an insulator."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000003>,
         <https://example.org/0000005>,
@@ -979,10 +983,10 @@
 
 <https://example.org/0000018> a skos:Concept ;
     dcterms:identifier "0000018"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000019> ;
     skos:broader <https://example.org/0000015> ;
     skos:definition "A photocatalyst introduced to the reaction chamber in the form of a thin film. To form a thin film, a (powdered) photocatalyst is deposited on a substrate (e.g., glass or metal) using an appropriate deposition technique. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000019>,
         <https://example.org/0000023>,
@@ -991,10 +995,10 @@
 
 <https://example.org/0000019> a skos:Concept ;
     dcterms:identifier "0000019"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000020> ;
     skos:broader <https://example.org/0000018> ;
     skos:definition "A technique used to deposit (immobilize) a (powdered) photocatalyst on a substate. These techniques indlude (but are not limited to): doctor blading, spin coating, spray coating, etc."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000020>,
         <https://example.org/0000021>,
@@ -1003,10 +1007,10 @@
 
 <https://example.org/0000024> a skos:Concept ;
     dcterms:identifier "0000024"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000025> ;
     skos:broader <https://example.org/0000023> ;
     skos:definition "The material that the substrate is made of. Common materials include: glass (conductive or not), ceramics and metal."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000025>,
         <https://example.org/0000026>,
@@ -1015,10 +1019,10 @@
 
 <https://example.org/0000078> a skos:Concept ;
     dcterms:identifier "0000078"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000128> ;
     skos:altLabel "reactor design; reactor engineering; photoreactor engineering"@en ;
     skos:definition "Details describing the construction, physical dimensions, and operation of the photoreactor used to perform a photocatalytic reaction."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000079>,
         <https://example.org/0000083>,
@@ -1028,10 +1032,10 @@
 
 <https://example.org/0000079> a skos:Concept ;
     dcterms:identifier "0000079"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000129> ;
     skos:broader <https://example.org/0000078> ;
     skos:definition "Spectroscopic or chromatographic methods used to qualitatively and quantitatively identify the products of the photoreaction. Such devices are usually attached to the photoreactor, or a sample is being trasfered to an identification method via another medium (e.g., gastight syringes)."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000080>,
         <https://example.org/0000081>,
@@ -1040,10 +1044,10 @@
 
 <https://example.org/0000094> a skos:Concept ;
     dcterms:identifier "0000094"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000166> ;
     skos:broader <https://example.org/0000093> ;
     skos:definition "Light source used to irradiate a photocatalyst in a reaction chamber. These include sources with various intensities, powers and wavelength ranges,  including Hg/Xe lamps, Xe lamps and LEDs. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000095>,
         <https://example.org/0000096>,
@@ -1052,11 +1056,11 @@
 
 <https://example.org/0000104> a skos:Concept ;
     dcterms:identifier "0000104"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000176> ;
     skos:altLabel "λ"@en ;
     skos:broader <https://example.org/0000098> ;
     skos:definition "The distance between two successive peaks or troughs in a wave."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000105>,
         <https://example.org/0000106>,
@@ -1065,10 +1069,10 @@
 
 <https://example.org/0000026> a skos:Concept ;
     dcterms:identifier "0000026"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000027> ;
     skos:broader <https://example.org/0000024> ;
     skos:definition "A flat surface made of glass serving as a substrate for the deposition of a photocatalyst."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000027>,
         <https://example.org/0000028>,
@@ -1078,10 +1082,10 @@
 
 <https://example.org/0000032> a skos:Concept ;
     dcterms:identifier "0000032"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000033> ;
     skos:broader <https://example.org/0000023> ;
     skos:definition "The dimensions of the substrate."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000033>,
         <https://example.org/0000034>,
@@ -1091,10 +1095,10 @@
 
 <https://example.org/0000039> a skos:Concept ;
     dcterms:identifier "0000039"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000040> ;
     skos:broader <https://example.org/0000037> ;
     skos:definition "The dimensions of the - deposited on the substrate - thin film"@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000040>,
         <https://example.org/0000041>,
@@ -1104,11 +1108,11 @@
 
 <https://example.org/0000083> a skos:Concept ;
     dcterms:identifier "0000083"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000152> ;
     skos:altLabel "photoreaction chamber"@en ;
     skos:broader <https://example.org/0000078> ;
     skos:definition "A construction inside of which the photocatalyst and the reactants coexist and the photoreaction takes place."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000084>,
         <https://example.org/0000085>,
@@ -1119,10 +1123,10 @@
 
 <https://example.org/0000098> a skos:Concept ;
     dcterms:identifier "0000098"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000170> ;
     skos:broader <https://example.org/0000093> ;
     skos:definition "Specific of roperties of the light source dictaning its operation and its adequacy in the studied photocatalytic reaction. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000099>,
         <https://example.org/0000100>,
@@ -1134,10 +1138,10 @@
 
 <https://example.org/0000005> a skos:Concept ;
     dcterms:identifier "0000005"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000006> ;
     skos:broader <https://example.org/0000002> ;
     skos:definition "Characteristic properties of a semiconductor used in the field of photocatalysis. These properties determine its performance in the studied photocatalytic application."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000006>,
         <https://example.org/0000007>,
@@ -1150,9 +1154,9 @@
 
 <https://example.org/0000065> a skos:Concept ;
     dcterms:identifier "0000065"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000087> ;
     skos:definition "A multi-step process iniatiated by the absorption of photons by a photocatalyst. This process involves various sub-processes that include the photogeneration and transfer of electron and hole pairs. "@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000066>,
         <https://example.org/0000067>,
@@ -1170,10 +1174,10 @@
 
 <https://example.org/0000044> a skos:Concept ;
     dcterms:identifier "0000044"^^xsd:token ;
-    dcterms:provenance "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     rdfs:isDefinedBy <https://w3id.org/nfdi4cat/voc4cat_0000066> ;
     skos:broader <https://example.org/0000001> ;
     skos:definition "A collection of techniques used to identify the (physico)chemical, morphological, structural, mechanical, optical and electrical properties of the syntesized photocatalysts. Characterization is performed after the synthesis of the photocatalysts to evaluate the success of the synthetic approach, but also after the completion of the evaluation of the materials in CO2 photoreduction to ensure their stability under the selected experimental parameters."@en ;
+    skos:historyNote "0000-0002-6242-2167 Nikolaos G. Moustakas created the resource"@en ;
     skos:inScheme <https://example.org> ;
     skos:narrower <https://example.org/0000045>,
         <https://example.org/0000046>,
@@ -1194,24 +1198,20 @@
         <https://example.org/0000061> ;
     skos:prefLabel "characterization"@en .
 
-<http://example.org/nfdi4cat/> a sdo:Organization ;
-    sdo:name "NFDI4Cat" ;
-    sdo:url "https://nfdi4cat.org"^^xsd:anyURI .
-
 <https://example.org> a skos:ConceptScheme ;
     dcterms:created "2023-06-29"^^xsd:date ;
     dcterms:creator <http://example.org/nfdi4cat/> ;
     dcterms:hasPart <https://example.org/0000108> ;
     dcterms:identifier "example.org"^^xsd:token ;
     dcterms:modified "2023-06-29"^^xsd:date ;
-    skos:historyNote """https://orcid.org/0000-0002-6242-2167 Nikolaos G. Moustakas,
-0000-0002-5898-1820 David Linke"""@en ;
     dcterms:publisher <http://example.org/nfdi4cat/> ;
-    owl:versionInfo "v2023-06-29" ;
+    owl:versionInfo "" ;
     skos:definition "This serves as example to demonstrate voc4cat-tool."@en ;
     skos:hasTopConcept <https://example.org/0000001>,
         <https://example.org/0000062>,
         <https://example.org/0000065>,
         <https://example.org/0000078> ;
+    skos:historyNote """https://orcid.org/0000-0002-6242-2167 Nikolaos G. Moustakas,
+0000-0002-5898-1820 David Linke"""@en ;
     skos:prefLabel "An example with terms from photocatalysis (taken from voc4Cat)"@en ;
     dcat:contactPoint "David Linke (orcid:0000-0002-5898-1820)" .
diff --git a/src/voc4cat/convert_043.py b/src/voc4cat/convert_043.py
index f15a8f6..71bd88b 100644
--- a/src/voc4cat/convert_043.py
+++ b/src/voc4cat/convert_043.py
@@ -130,10 +130,12 @@ def extract_concept_scheme(
         title=sheet["B3"].value,
         description=sheet["B4"].value,
         created=sheet["B5"].value,
-        modified=sheet["B6"].value,
+        modified=(
+            sheet["B6"].value if sheet["B6"].value is not None else sheet["B5"].value
+        ),
         creator=sheet["B7"].value,
         publisher=sheet["B8"].value,
-        version=sheet["B9"].value,
+        version=sheet["B9"].value if sheet["B9"].value is not None else "",
         provenance=sheet["B10"].value,
         custodian=sheet["B11"].value,
         pid=sheet["B12"].value,
diff --git a/tests/test_template043.py b/tests/test_template043.py
index 4864b12..826e2b8 100644
--- a/tests/test_template043.py
+++ b/tests/test_template043.py
@@ -17,7 +17,7 @@ def test_empty_template():
             test_file,
             output_type="file",
         )
-    assert "9 validation errors for ConceptScheme" in str(e)
+    assert "8 validation errors for ConceptScheme" in str(e)
 
 
 def test_simple():