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

<http://www.irandoc.acir/onto/irandoc/NEMA0007778>
  skos:prefLabel "قیرهای خمیری"@fa, "mastics"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0007777> .

<http://www.irandoc.acir/onto/irandoc/NEMA0001377>
  skos:prefLabel "شیل‌های نفتی"@fa, "oil shales"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0007777> .

<http://www.irandoc.acir/onto/irandoc/NEMA0007791>
  skos:prefLabel "مصالح ساختمانی"@fa, "construction materials"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0007777> .

<http://www.irandoc.acir/onto/irandoc/NEMA0003655>
  skos:prefLabel "فراورده‌های نفتی"@fa, "petroleum products"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0007777> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002601>
  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/NEMA0007777> .

<http://www.irandoc.acir/onto/irandoc/NEMA0007777>
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0003655>, <http://www.irandoc.acir/onto/irandoc/NEMA0007791> ;
  skos:prefLabel "bitumens"@en, "قیرها"@fa ;
  skos:altLabel "BITUMENES"@en ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0007778>, <http://www.irandoc.acir/onto/irandoc/NEMA0001377>, <http://www.irandoc.acir/onto/irandoc/NEMA0002601> ;
  skos:scopeNote "BITUMENES"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .