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

<http://www.irandoc.acir/onto/irandoc/NEMA0008200>
  skos:prefLabel "منابع زغال‌سنگ"@fa, "coal resources"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0007930> .

<http://www.irandoc.acir/onto/irandoc/NEMA0007930>
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004761>, <http://www.irandoc.acir/onto/irandoc/NEMA0008200> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0007933> ;
  skos:prefLabel "معادن زغال‌سنگ"@fa, "coal mines"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/NEMA0007933>
  skos:prefLabel "معدن‌ها"@fa, "mines (excavations)"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0007930> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004761>
  skos:prefLabel "معدنکاری زغال‌سنگ"@fa, "coal mining"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0007930> .