@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/mathpro736>
  skos:prefLabel "ارزش"@fa, "value"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/mathpro2509> .

<http://www.irandoc.acir/onto/irandoc/mathpro2156>
  skos:prefLabel "نقطه در بی‌نهایت"@fa, "point at infinity"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/mathpro2538> ns0:contains <http://www.irandoc.acir/onto/irandoc/mathpro2509> .
ns0:contains rdfs:label "شامل"@fa, "contains"@en .
<http://www.irandoc.acir/onto/irandoc/mathpro2509>
  ns0:contains <http://www.irandoc.acir/onto/irandoc/mathpro2156> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/mathpro736> ;
  skos:prefLabel "بی‌نهایت"@fa, "infinity"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .