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

<http://www.irandoc.acir/onto/irandoc/AEM000433>
  skos:prefLabel "Refinery fire"@en, "آتش‌سوزی پالایشگاه"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/AEM0001640> .

<http://www.irandoc.acir/onto/irandoc/AEM0001639>
  skos:prefLabel "Petroleum refinery"@en, "پالایشگاه نفت"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/AEM0001640> .

<http://www.irandoc.acir/onto/irandoc/AEM0001638>
  skos:prefLabel "Sugar refinery"@en, "پالایشگاه قند"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/AEM0001640> .

<http://www.irandoc.acir/onto/irandoc/AEM0001640>
  skos:narrower <http://www.irandoc.acir/onto/irandoc/AEM0001639>, <http://www.irandoc.acir/onto/irandoc/AEM0001638> ;
  skos:related <http://www.irandoc.acir/onto/irandoc/AEM000433> ;
  skos:prefLabel "Refinery"@en, "پالایشگاه"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .