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

<http://rdf-vocabulary.ddialliance.org/xkos#comment> rdfs:label "توضیحات"@fa, "comment"@en .
<http://www.irandoc.acir/onto/irandoc/mathpro491>
  skos:prefLabel "فرم بسته"@fa, "closed form"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/mathpro502> .

<http://www.irandoc.acir/onto/irandoc/mathpro502>
  ns0:comment <http://en.wikipedia.org/wiki/exact_differential_form> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/mathpro491> ;
  skos:prefLabel "فرم دقیق"@fa, "exact form"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .