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

<http://www.irandoc.acir/onto/irandoc/CAB0004459>
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0004568>, <http://www.irandoc.acir/onto/irandoc/CAB0054081> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0004833> ;
  skos:prefLabel "قطران گیاهی"@fa, "pitch"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CAB0054081>
  skos:prefLabel "رزین‌ها"@fa, "resins"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0004459> .

<http://www.irandoc.acir/onto/irandoc/CAB0004833>
  skos:prefLabel "materials by form"@en, "شکل مواد"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CAB0004459> .

<http://www.irandoc.acir/onto/irandoc/CAB0004568>
  skos:prefLabel "tars"@en, "قطران"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0004459> .