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

<http://www.irandoc.acir/onto/irandoc/mathpro3398>
  ns0:comment <http://en.wikipedia.org/wiki/surface_of_revolution> ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/math0009526> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/mathpro3382> ;
  skos:prefLabel "رویه دورانی"@fa, "سطح انقلاب"@fa, "surface of revolution"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/mathpro3382>
  skos:prefLabel "رویه"@fa, "سطح"@fa, "surface"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/mathpro3398> .

ns0:comment rdfs:label "توضیحات"@fa, "comment"@en .
<http://www.irandoc.acir/onto/irandoc/math0009526>
  skos:prefLabel "قضیه پاپوس"@fa, "pappus theorem"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/mathpro3398> .