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

<http://www.irandoc.acir/onto/irandoc/insp0001545>
  skos:prefLabel "Oil refining"@en, "پالایش نفت"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0004778> .

<http://www.irandoc.acir/onto/irandoc/insp0010010>
  skos:prefLabel "Petroleum industry"@en, "صنعت نفت"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0004778> .

<http://www.irandoc.acir/onto/irandoc/insp0003627>
  skos:prefLabel "Chemical product"@en, "محصول شیمیایی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0004778> .

<http://www.irandoc.acir/onto/irandoc/insp0009977>
  skos:prefLabel "Chemical industry"@en, "صنعت شیمیایی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0004778> .

<http://www.irandoc.acir/onto/irandoc/insp0004778>
  skos:prefLabel "Petrochemicals"@en, "مواد پتروشیمیایی"@fa ;
  a skos:Concept, <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept> ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0001545>, <http://www.irandoc.acir/onto/irandoc/insp0011294>, <http://www.irandoc.acir/onto/irandoc/insp0009977>, <http://www.irandoc.acir/onto/irandoc/insp0010010> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0003627>, <http://www.irandoc.acir/onto/irandoc/insp0004816> .

<http://www.irandoc.acir/onto/irandoc/insp0004816>
  skos:prefLabel "Organic compounds"@en, "ترکیبات آلی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0004778> .

<http://www.irandoc.acir/onto/irandoc/insp0011294>
  skos:prefLabel "نفت خام"@fa, "Petroleum"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0004778> .