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

<http://www.irandoc.acir/onto/irandoc/CAB0004524>
  skos:prefLabel "نفت سفید"@fa, "kerosene"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0053344> .

<http://www.irandoc.acir/onto/irandoc/CAB0053348>
  skos:prefLabel "هیدروکربن‌ها"@fa, "hydrocarbons"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CAB0053344> .

<http://www.irandoc.acir/onto/irandoc/CAB0053344>
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CAB0004524> ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0004513> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0053348> ;
  skos:prefLabel "هیدروکربن‌های نفتی"@fa, "petroleum hydrocarbons"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CAB0004513>
  skos:prefLabel "نفت طبیعی"@fa, "petroleum"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0053344> .