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

<http://www.irandoc.acir/onto/irandoc/CAB0004993>
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0004986>, <http://www.irandoc.acir/onto/irandoc/CAB0004808> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0004996> ;
  skos:prefLabel "نشت روغن"@fa, "oil spills"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CAB0004996>
  skos:prefLabel "pollution"@en, "آلودگی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CAB0004993> .

<http://www.irandoc.acir/onto/irandoc/CAB0004986>
  skos:prefLabel "آلاینده‌ها"@fa, "pollutants"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0004993> .

<http://www.irandoc.acir/onto/irandoc/CAB0004808>
  skos:prefLabel "روغن معدنی"@fa, "mineral oils"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0004993> .