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

<http://www.irandoc.acir/onto/irandoc/SOC0001244>
  skos:prefLabel "Natural Resources"@en, "منابع طبیعی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/SOC000788> .

<http://www.irandoc.acir/onto/irandoc/SOC000246>
  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/SOC000788> .

<http://www.irandoc.acir/onto/irandoc/SOC000788>
  skos:related <http://www.irandoc.acir/onto/irandoc/SOC000246>, <http://www.irandoc.acir/onto/irandoc/SOC0001244>, <http://www.irandoc.acir/onto/irandoc/SOC0001825> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/SOC000789> ;
  skos:prefLabel "Petroleum"@en, "نفت"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/SOC000789>
  skos:prefLabel "Fuels"@en, "سوخت"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/SOC000788> .

<http://www.irandoc.acir/onto/irandoc/SOC0001825>
  skos:prefLabel "Energy Policy"@en, "سیاست انرژی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/SOC000788> .