@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/225248004>
  skos:prefLabel "حفاری ZD Zone"@fa, "ZD - Zone drilling"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/52637005> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/52637005> .

<http://www.irandoc.acir/onto/irandoc/52637005>
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/63487001> ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/225248004> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/63487001> ;
  skos:prefLabel "لقاح تخمک در لوله آزمایش"@fa, "Test tube ovum fertilization"@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/63487001>
  skos:prefLabel "لقاح کمکی"@fa, "Assisted fertilization"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/52637005> .