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

<http://www.irandoc.acir/onto/irandoc/NEMA0006886>
  skos:prefLabel "گازها"@fa, "gases"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002607> .

<http://www.irandoc.acir/onto/irandoc/NEMA0008533>
  skos:prefLabel "استیلن"@fa, "acetylene"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002607> .

<http://www.irandoc.acir/onto/irandoc/NEMA0008538>
  skos:prefLabel "butane"@en, "بوتان"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002607> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002616>
  skos:prefLabel "سوخت‌ها"@fa, "fuels"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0002607> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002605>
  skos:prefLabel "گاز صنعتی"@fa, "manufactured gas"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0002607> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002603>
  skos:prefLabel "زیست‌گاز"@fa, "biogas"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0002607> .

<http://www.irandoc.acir/onto/irandoc/NEMA0008539>
  skos:prefLabel "propane"@en, "پروپان"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002607> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002606>
  skos:prefLabel "گاز طبیعی"@fa, "natural gas"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0002607> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002604>
  skos:prefLabel "گاز زغال‌سنگ"@fa, "coal gas"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0002607> .

<http://www.irandoc.acir/onto/irandoc/NEMA0008541>
  skos:prefLabel "متان"@fa, "methane"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002607> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002607>
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0002616> ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0002604>, <http://www.irandoc.acir/onto/irandoc/NEMA0002603>, <http://www.irandoc.acir/onto/irandoc/NEMA0002606>, <http://www.irandoc.acir/onto/irandoc/NEMA0002605> ;
  skos:prefLabel "gaseous fuels"@en, "سوخت‌های گازی شکل"@fa ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0008541>, <http://www.irandoc.acir/onto/irandoc/NEMA0008539>, <http://www.irandoc.acir/onto/irandoc/NEMA0006886>, <http://www.irandoc.acir/onto/irandoc/NEMA0008538>, <http://www.irandoc.acir/onto/irandoc/NEMA0008533> ;
  a skos:Concept, <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept> .