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

<http://www.irandoc.acir/onto/irandoc/insp0015278>
  skos:prefLabel "Marine accident"@en, "سانحه دریایی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0010875> .

<http://www.irandoc.acir/onto/irandoc/insp0010875>
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0010874>, <http://www.irandoc.acir/onto/irandoc/insp0010871>, <http://www.irandoc.acir/onto/irandoc/insp0015278> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0010879> ;
  skos:prefLabel "Marine pollution"@en, "آلودگی دریایی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/insp0010871>
  skos:prefLabel "Oil pollution"@en, "آلودگی نفتی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0010875> .

<http://www.irandoc.acir/onto/irandoc/insp0010874>
  skos:prefLabel "Thermal pollution"@en, "آلودگی گرمایی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0010875> .

<http://www.irandoc.acir/onto/irandoc/insp0010879>
  skos:prefLabel "Water pollution"@en, "آلودگی آب"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0010875> .