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

<http://www.irandoc.acir/onto/irandoc/CHEM0002502>
  skos:prefLabel "ذره در جعبه"@fa, "particle in a box"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CHEM000891> .

<http://www.irandoc.acir/onto/irandoc/CHEM000891>
  skos:related <http://www.irandoc.acir/onto/irandoc/CHEM0002502> ;
  skos:prefLabel "differential equation"@en, "معادله دیفرانسیل"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .