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

<http://www.irandoc.acir/onto/irandoc/chmtr000212>
  skos:narrower <http://www.irandoc.acir/onto/irandoc/chmtr000210>, <http://www.irandoc.acir/onto/irandoc/chmtr000211> ;
  skos:related <http://www.irandoc.acir/onto/irandoc/chmtr000374> ;
  skos:prefLabel "سختی آب"@fa, "water hardness"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/chmtr000374>
  skos:prefLabel "آب سخت"@fa, "hard water"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/chmtr000212> .

<http://www.irandoc.acir/onto/irandoc/chmtr000211>
  skos:prefLabel "سختی موقت آب"@fa, "temporary hardner"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/chmtr000212> .

<http://www.irandoc.acir/onto/irandoc/chmtr000210>
  skos:prefLabel "سختی دایم آب"@fa, "permanent hardener"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/chmtr000212> .