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

<http://www.irandoc.acir/onto/irandoc/EIT0004190>
  skos:related <http://www.irandoc.acir/onto/irandoc/EIT0002790> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/EIT0004191> ;
  skos:prefLabel "تجهیزات کنترل آلودگی آب"@fa, "water pollution control equipment"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/EIT0004191>
  skos:prefLabel "تجهیزات کنترل آلودگی"@fa, "pollution control equipment"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/EIT0004190> .

<http://www.irandoc.acir/onto/irandoc/EIT0002790>
  skos:prefLabel "کنترل آلودگی آب"@fa, "water pollution control"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/EIT0004190> .