@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix ns0: <http://rdf-vocabulary.ddialliance.org/xkos#> .

<http://www.irandoc.acir/onto/irandoc/mathpro1668>
  skos:prefLabel "توپولوژی"@fa, "topology"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/mathpro405>
  skos:prefLabel "دوگانی"@fa, "دوگانگی"@fa, "duality"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/mathpro407> .

<http://rdf-vocabulary.ddialliance.org/xkos#comment> rdfs:label "توضیحات"@fa, "comment"@en .
<http://rdf-vocabulary.ddialliance.org/xkos#label> rdfs:label "برچسب"@fa, "label"@en .
<http://www.irandoc.acir/onto/irandoc/math0004752>
  skos:prefLabel "فضای دوگانی"@fa, "dual space"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://rdf-vocabulary.ddialliance.org/xkos#is_defined_by> rdfs:label "تعریف شده توسط"@fa, "is defined by"@en .
<http://www.irandoc.acir/onto/irandoc/mathpro407>
  skos:prefLabel "serre duality"@en, "دوگانگی سره"@fa, "دوگانی سر"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:label <http://www.irandoc.acir/onto/irandoc/mathpro407> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/mathpro405> ;
  ns0:is_defined_by <http://www.irandoc.acir/onto/irandoc/mathpro1668> ;
  skos:related <http://www.irandoc.acir/onto/irandoc/math0004752> ;
  ns0:comment <http://en.wikipedia.org/wiki/serre_duality> .