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

<http://www.irandoc.acir/onto/irandoc/INSP0006661>
  skos:prefLabel "rare earth metal"@en, "فلز خاک کمیاب"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/INSP0006648> .

<http://www.irandoc.acir/onto/irandoc/INSP0006648>
  skos:altLabel "Er"@en ;
  skos:scopeNote "see also nucleus with ......"@en ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0009773>, <http://www.irandoc.acir/onto/irandoc/INSP0015018> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/INSP0006661> ;
  skos:prefLabel "اربیم"@fa, "erbium"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/INSP0015018>
  skos:prefLabel "آلیاژ اربیم"@fa, "erbium alloy"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0006648> .

<http://www.irandoc.acir/onto/irandoc/INSP0009773>
  skos:prefLabel "ترکیبات اربیم"@fa, "erbium compounds"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0006648> .