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

<http://www.irandoc.acir/onto/irandoc/CAB0004990>
  skos:prefLabel "آلودگی آب"@fa, "water pollution"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0053161> .

<http://www.irandoc.acir/onto/irandoc/CAB0053161>
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0004990> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0053163> ;
  skos:prefLabel "متیل‌جیوه"@fa, "methylmercury"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CAB0053163>
  skos:prefLabel "ترکیبات آلی جیوه"@fa, "organomercurial compounds"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CAB0053161> .