@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<http://www.irandoc.acir/onto/irandoc/insp0004979>
  skos:prefLabel "Optical property"@en, "ویژگی نوری"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0004970> .

<http://www.irandoc.acir/onto/irandoc/insp0004970>
  skos:altLabel "photodarkening"@en ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0006047>, <http://www.irandoc.acir/onto/irandoc/insp0004934> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0004979> ;
  skos:prefLabel "Photochromism"@en, "نوررنگی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/insp0006047>
  skos:prefLabel "Photochemistry"@en, "نورشیمی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0004970> .

<http://www.irandoc.acir/onto/irandoc/insp0004934>
  skos:prefLabel "Colour"@en, "رنگ (فام)"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0004970> .