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

<http://www.irandoc.acir/onto/irandoc/CHMTR000303>
  skos:related <http://www.irandoc.acir/onto/irandoc/CHMTR000270> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CHMTR000305> ;
  skos:prefLabel "gas pressure"@en, "فشار گاز"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CHMTR000270>
  skos:prefLabel "Boyle's law"@en, "قانون بویل"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CHMTR000303> .

<http://www.irandoc.acir/onto/irandoc/CHMTR000305>
  skos:prefLabel "فشار"@fa, "pressure"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CHMTR000303> .