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

<http://www.irandoc.acir/onto/irandoc/NEMA0003235>
  skos:prefLabel "عایق‌کاری صوتی"@fa, "acoustic insulation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0007767> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004467>
  skos:prefLabel "دیوارها"@fa, "walls"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0007767> .

<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/NEMA0007767> .

<http://www.irandoc.acir/onto/irandoc/NEMA0007767>
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004467>, <http://www.irandoc.acir/onto/irandoc/NEMA0003235> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0007791> ;
  skos:prefLabel "تخته‌های عایق"@fa, "insulating boards"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .