@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/292886001> ns0:Causative_agent <http://www.irandoc.acir/onto/irandoc/111095003> .
<http://www.irandoc.acir/onto/irandoc/431510009>
  skos:prefLabel "فرمالین (ماده)"@fa, "Formalin (substance)"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/111095003> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/111095003> .

<http://www.irandoc.acir/onto/irandoc/111095003>
  ns0:Is_a "311835000", "419665005" ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/431510009> ;
  skos:prefLabel "فرمالدئید"@fa, "formaldehyde"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

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