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

<http://www.irandoc.acir/onto/irandoc/insp0007483>
  skos:prefLabel "Calculus"@en, "حسابان"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0007482> .

<http://www.irandoc.acir/onto/irandoc/insp0007495>
  skos:prefLabel "Nonlinear differential equation"@en, "معادله دیفرانسیل غیرخطی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0007482> .

<http://www.irandoc.acir/onto/irandoc/insp0007560>
  skos:prefLabel "Rayleigh-ritz method"@en, "روش ریلی-ریتز"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0007482> .

<http://www.irandoc.acir/onto/irandoc/insp0007482>
  skos:altLabel "variational calculus"@en ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0007560> ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0007495> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0007483> ;
  skos:prefLabel "Variational technique"@en, "تکنیک تغییر"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .