@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/mathpro3129>
  ns0:comment <http://en.wikipedia.org/wiki/pl%c3%bccker_coordinates> ;
  ns0:contains <http://www.irandoc.acir/onto/irandoc/mathpro142> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/mathpro3084> ;
  skos:prefLabel "مختصات پلاکر"@fa, "plucker coordinate"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:label <http://www.irandoc.acir/onto/irandoc/mathpro3129> .

ns0:comment rdfs:label "توضیحات"@fa, "comment"@en .
ns0:label rdfs:label "برچسب"@fa, "label"@en .
<http://www.irandoc.acir/onto/irandoc/mathpro142>
  skos:prefLabel "فضای تصویری"@fa, "projective space"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

ns0:contains rdfs:label "شامل"@fa, "contains"@en .
<http://www.irandoc.acir/onto/irandoc/mathpro3084>
  skos:prefLabel "سیستم مرجع"@fa, "system of reference"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/mathpro3129> .