@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#label> rdfs:label "برچسب"@fa, "label"@en .
<http://www.irandoc.acir/onto/irandoc/mathpro2880>
  skos:broader <http://www.irandoc.acir/onto/irandoc/mathpro2856> ;
  skos:prefLabel "روش کنترل بهینه گرادیان"@fa, "gradient optimal-control method"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:label <http://www.irandoc.acir/onto/irandoc/mathpro2880> .

<http://www.irandoc.acir/onto/irandoc/mathpro2856>
  skos:prefLabel "روش نظریه معادلات دیفرانسیل"@fa, "method of theory of differential equations"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/mathpro2880> .