@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<http://www.irandoc.acir/onto/irandoc/INSP0007339>
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0007600> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/INSP0007691> ;
  skos:prefLabel "دوگانی (ریاضیات)"@fa, "duality (mathematics)"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/INSP0007600>
  skos:prefLabel "عملگر ریاضی"@fa, "mathematical operators"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0007339> .

<http://www.irandoc.acir/onto/irandoc/INSP0007691>
  skos:prefLabel "ریاضی"@fa, "mathematics"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/INSP0007339> .