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

<http://www.irandoc.acir/onto/irandoc/CAB0053174>
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0004745> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0053340> ;
  skos:prefLabel "استیرن"@fa, "styrene"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CAB0004745>
  skos:prefLabel "پلی‌استیرن‌ها"@fa, "polystyrenes"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0053174> .

<http://www.irandoc.acir/onto/irandoc/CAB0053340>
  skos:prefLabel "آروماتیک هیدروکربن‌ها"@fa, "aromatic hydrocarbons"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CAB0053174> .