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

<http://www.irandoc.acir/onto/irandoc/NEMA0007979>
  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/NEMA0007980> .

<http://www.irandoc.acir/onto/irandoc/NEMA0007987>
  skos:prefLabel "آلودگی فرامرزی"@fa, "transfrontier pollution"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0007980> .

<http://www.irandoc.acir/onto/irandoc/NEMA0007980>
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0007979>, <http://www.irandoc.acir/onto/irandoc/NEMA0007987> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0007992> ;
  skos:prefLabel "انتشار آلاینده‌ها"@fa, "circulation of pollutants"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/NEMA0007992>
  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/NEMA0007980> .