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

<http://www.irandoc.acir/onto/irandoc/INSP0006649>
  skos:prefLabel "اروپیم"@fa, "europium"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0009774> .

<http://www.irandoc.acir/onto/irandoc/INSP0015019>
  skos:prefLabel "آلیاژ اروپیم"@fa, "europium alloy"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0009774> .

<http://www.irandoc.acir/onto/irandoc/INSP0009774>
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0006649>, <http://www.irandoc.acir/onto/irandoc/INSP0015019> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/INSP0009786> ;
  skos:prefLabel "ترکیبات اروپیم"@fa, "europium compounds"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/INSP0009786>
  skos:prefLabel "ترکیبات خاک کمیاب"@fa, "rare earth compounds"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/INSP0009774> .