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

<http://www.irandoc.acir/onto/irandoc/CAB0057689>
  skos:prefLabel "آب زیرزمینی"@fa, "groundwater"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0004989> .

<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:narrower <http://www.irandoc.acir/onto/irandoc/CAB0004989> .

<http://www.irandoc.acir/onto/irandoc/CAB0004989>
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0057689> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0004990> ;
  skos:prefLabel "آلودگی آب زیرزمینی"@fa, "groundwater pollution"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .