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

<http://www.irandoc.acir/onto/irandoc/insp0004542>
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0011878> ;
  skos:prefLabel "Periodic system of element"@en, "سامانه تناوبی عناصر"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/insp0011878>
  skos:prefLabel "Element (chemical)"@en, "عنصر (شیمیایی)"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0004542> .