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

<http://www.irandoc.acir/onto/irandoc/CAB0004792>
  skos:prefLabel "building materials"@en, "مصالح ساختمانی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CAB0004773> .

<http://www.irandoc.acir/onto/irandoc/CAB0004773>
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0004787>, <http://www.irandoc.acir/onto/irandoc/CAB0004772> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0004792> ;
  skos:prefLabel "سیمان آهن‌دار"@fa, "ferrocement"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CAB0004772>
  skos:prefLabel "بتن"@fa, "concrete"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0004773> .

<http://www.irandoc.acir/onto/irandoc/CAB0004787>
  skos:prefLabel "سیمان"@fa, "cement"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0004773> .