@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/304084003>
  skos:prefLabel "پورفیرین ها و مشتقات"@fa, "Porphyrins and derivatives"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/373454003> .

<http://www.irandoc.acir/onto/irandoc/373454003>
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/304084003> ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/57813001> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/304084003> ;
  skos:prefLabel "عامل متالوپورفیرین (ماده)"@fa, "Metalloporphyrin agent (substance)"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/57813001>
  skos:prefLabel "هم"@fa, "heme"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:Is_a <http://www.irandoc.acir/onto/irandoc/373454003> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/373454003> .

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