@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ns0: <http://rdf-vocabulary.ddialliance.org/xkos#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

<http://www.irandoc.acir/onto/irandoc/34323004>
  skos:prefLabel "زغال سنگ"@fa, "Coal"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/767721007> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/767721007> .

<http://www.irandoc.acir/onto/irandoc/44446004>
  skos:prefLabel "Petroleum product"@en, "فرآورده نفتی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/767721007> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/767721007> .

<http://www.irandoc.acir/onto/irandoc/79007002>
  skos:prefLabel "Industrial product"@en, "محصول صنعتی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/767721007> .

<http://www.irandoc.acir/onto/irandoc/77132009>
  skos:prefLabel "سوخت موشک"@fa, "Rocket fuel"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/767721007> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/767721007> .

<http://www.irandoc.acir/onto/irandoc/767721007>
  skos:broader <http://www.irandoc.acir/onto/irandoc/79007002> ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/3930000>, <http://www.irandoc.acir/onto/irandoc/34323004>, <http://www.irandoc.acir/onto/irandoc/44446004>, <http://www.irandoc.acir/onto/irandoc/77132009> ;
  skos:prefLabel "زغال سنگ و عامل نفت (ماده)"@fa, "Coal and petroleum agent (substance)"@en ;
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/79007002> ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

ns0:Is_a rdfs:label "هست یک"@fa, "Is a"@en .
<http://www.irandoc.acir/onto/irandoc/3930000>
  skos:prefLabel "گاز تولیدی"@fa, "Manufactured gas"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/767721007> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/767721007> .