@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/767178007>
  skos:prefLabel "کلسیم و ترکیب کلسیم (ماده)"@fa, "Calcium and calcium compound (substance)"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/64974009> .

<http://www.irandoc.acir/onto/irandoc/64974009>
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/767178007>, <http://www.irandoc.acir/onto/irandoc/33638001> ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/33137005> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/767178007>, <http://www.irandoc.acir/onto/irandoc/33638001> ;
  skos:prefLabel "ایزوتوپ کلسیم"@fa, "Calcium isotope"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/33638001>
  skos:prefLabel "ایزوتوپ"@fa, "Isotope"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/64974009> .

<http://www.irandoc.acir/onto/irandoc/33137005>
  skos:prefLabel "رادیوایزوتوپ کلسیم"@fa, "Calcium radioisotope"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/64974009> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/64974009> .

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