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

<http://www.irandoc.acir/onto/irandoc/71463006>
  skos:prefLabel "پلی اتیلن"@fa, "Polyethylene"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/256640005> .

<http://rdf-vocabulary.ddialliance.org/xkos#Is_a> rdfs:label "هست یک"@fa, "Is a"@en .
<http://www.irandoc.acir/onto/irandoc/256640005>
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/71463006> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/71463006> ;
  skos:prefLabel "پلی تترا فلوئورواتیلن"@fa, "Polytetrafluoroethylene"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/176099006> ns0:Direct_substance <http://www.irandoc.acir/onto/irandoc/256640005> .
<http://www.irandoc.acir/onto/irandoc/236257009> ns0:Direct_substance <http://www.irandoc.acir/onto/irandoc/256640005> .
<http://www.irandoc.acir/onto/irandoc/10608000> ns0:Causative_agent <http://www.irandoc.acir/onto/irandoc/256640005> .