@prefix ns0: <http://rdf-vocabulary.ddialliance.org/xkos#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

<http://www.irandoc.acir/onto/irandoc/763100003> ns0:Using_substance <http://www.irandoc.acir/onto/irandoc/260786008> .
<http://www.irandoc.acir/onto/irandoc/260769002>
  skos:prefLabel "Materials"@en, "مواد"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/260786008> .

<http://www.irandoc.acir/onto/irandoc/260786008>
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/260769002> ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/289958009> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/260769002> ;
  skos:prefLabel "مواد طبیعی"@fa, "Natural material"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

ns0:Is_a rdfs:label "هست یک"@fa, "Is a"@en .
<http://www.irandoc.acir/onto/irandoc/289958009>
  skos:prefLabel "مواد طبیعی ارگانیک"@fa, "Organic natural material"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/260786008> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/260786008> .