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

<http://www.irandoc.acir/onto/irandoc/MAT0006834>
  skos:broader <http://www.irandoc.acir/onto/irandoc/MAT0006849> ;
  skos:prefLabel "معادله دیفرانسیل دوجمله‌ای"@fa, "binomial differential equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/MAT0006849>
  skos:prefLabel "first order differential equation"@en, "معادله دیفرانسیل مرتبه اول"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/MAT0006834> .