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

<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/insp0007744> .

<http://www.irandoc.acir/onto/irandoc/insp0003541>
  skos:prefLabel "Reinforced concrete"@en, "بتن مسلح"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0007744> .

<http://www.irandoc.acir/onto/irandoc/insp0011028>
  skos:prefLabel "Structural engineering"@en, "مهندسی سازه"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0007744> .

<http://www.irandoc.acir/onto/irandoc/insp0015068>
  skos:prefLabel "Steel"@en, "فولاد"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0007744> .

<http://www.irandoc.acir/onto/irandoc/insp0007744>
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0011028>, <http://www.irandoc.acir/onto/irandoc/insp0015068>, <http://www.irandoc.acir/onto/irandoc/insp0003541> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0007746> ;
  skos:prefLabel "Rebar"@en, "میلگرد"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .