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

<http://www.irandoc.acir/onto/irandoc/insp0007738>
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0013340> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0007746> ;
  skos:prefLabel "Asphalt"@en, "آسفالت"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/insp0007746>
  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/insp0007738> .

<http://www.irandoc.acir/onto/irandoc/insp0013340>
  skos:prefLabel "Road building"@en, "جاده‌سازی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0007738> .