@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<http://www.irandoc.acir/onto/irandoc/insp0007507>
  skos:prefLabel "Differential equation"@en, "معادله دیفرانسیل"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0007365> .

<http://www.irandoc.acir/onto/irandoc/insp0007365>
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0007507> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0007389> ;
  skos:prefLabel "Elliptic equation"@en, "معادله محذوف"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/insp0007389>
  skos:prefLabel "Equation"@en, "معادله"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0007365> .