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

<http://www.irandoc.acir/onto/irandoc/HZA000473>
  skos:prefLabel "شیمی آلی"@fa, "organic chemistry"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/HZA000072> .

<http://www.irandoc.acir/onto/irandoc/HZA000072>
  skos:related <http://www.irandoc.acir/onto/irandoc/HZA000069>, <http://www.irandoc.acir/onto/irandoc/HZA000319>, <http://www.irandoc.acir/onto/irandoc/HZA000089>, <http://www.irandoc.acir/onto/irandoc/HZA000382> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/HZA000473> ;
  skos:prefLabel "پتروشیمی"@fa, "petrochemistry"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/HZA000319>
  skos:prefLabel "فراورده‌های پتروشیمی"@fa, "petrochemicals"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/HZA000072> .

<http://www.irandoc.acir/onto/irandoc/HZA000069>
  skos:prefLabel "پالایشگاه"@fa, "refinery"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/HZA000072> .

<http://www.irandoc.acir/onto/irandoc/HZA000382>
  skos:prefLabel "refined oil"@en, "نفت پالیده"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/HZA000072> .

<http://www.irandoc.acir/onto/irandoc/HZA000089>
  skos:prefLabel "reforming"@en, "تبدیل(2)"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/HZA000072> .