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

<http://www.irandoc.acir/onto/irandoc/CHMTR000141>
  skos:prefLabel "سوخت زیست دیزل"@fa, "diesel biofuel"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CHMTR000142> .

<http://www.irandoc.acir/onto/irandoc/CHMTR000143>
  skos:prefLabel "replacements for petroleum"@en, "جایگزین‌های نفت"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CHMTR000142> .

<http://www.irandoc.acir/onto/irandoc/CHMTR000142>
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CHMTR000141> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CHMTR000143> ;
  skos:prefLabel "گیاه شرشم"@fa, "brassica"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .