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

<http://www.irandoc.acir/onto/irandoc/20273004>
  skos:prefLabel "ماشین صنعتی"@fa, "Industrial machine"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/14208000> .

<http://www.irandoc.acir/onto/irandoc/50483000>
  skos:prefLabel "دکل چاه نفت"@fa, "Oil well rig"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/14208000> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/14208000> .

<http://www.irandoc.acir/onto/irandoc/14208000>
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/20273004> ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/50483000> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/20273004> ;
  skos:prefLabel "چاه نفت"@fa, "Oil well"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

ns0:Is_a rdfs:label "هست یک"@fa, "Is a"@en .