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

<http://www.irandoc.acir/onto/irandoc/NEMA0003654>
  skos:prefLabel "نفت سفید"@fa, "kerosene"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002592> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002591>
  skos:prefLabel "سوخت‌های چوبی"@fa, "ligneous fuels"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002592> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002596>
  skos:prefLabel "زغال‌سنگ"@fa, "coal"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002592> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004434>
  skos:prefLabel "گرمایش"@fa, "heating"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002592> .

<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/NEMA0002592> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002592>
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0003654>, <http://www.irandoc.acir/onto/irandoc/NEMA0002596>, <http://www.irandoc.acir/onto/irandoc/NEMA0002591>, <http://www.irandoc.acir/onto/irandoc/NEMA0001691>, <http://www.irandoc.acir/onto/irandoc/NEMA0002609>, <http://www.irandoc.acir/onto/irandoc/NEMA0002606>, <http://www.irandoc.acir/onto/irandoc/NEMA0004434> ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:prefLabel "سوخت‌های حرارتی"@fa, "heating fuels"@en ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0002616> .

<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:related <http://www.irandoc.acir/onto/irandoc/NEMA0002592> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002609>
  skos:prefLabel "سوخت‌های متالورژیکی"@fa, "metallurgical fuels"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002592> .

<http://www.irandoc.acir/onto/irandoc/NEMA0001691>
  skos:prefLabel "روغن‌های سوختی"@fa, "fuel oils"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002592> .