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

<http://www.irandoc.acir/onto/irandoc/CHMTR000351>
  skos:related <http://www.irandoc.acir/onto/irandoc/CHMTR000280>, <http://www.irandoc.acir/onto/irandoc/CHMTR000388> ;
  skos:prefLabel "مصرف جهانی انرژی"@fa, "world energy consumption"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CHMTR000388>
  skos:prefLabel "نفت خام"@fa, "petroleum"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CHMTR000351> .

<http://www.irandoc.acir/onto/irandoc/CHMTR000280>
  skos:prefLabel "انرژی"@fa, "energy"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CHMTR000351> .