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

<http://www.irandoc.acir/onto/irandoc/insp0011119>
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0011114> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0011123> ;
  skos:prefLabel "Nearly-free-electron approximation"@en, "تقریب الکترون تقریبا آزاد"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/insp0011114>
  skos:prefLabel "Free-electron approximation"@en, "تقریب الکترون آزاد"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0011119> .

<http://www.irandoc.acir/onto/irandoc/insp0011123>
  skos:prefLabel "Band theory"@en, "نظریه نوار"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0011119> .