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

<http://www.irandoc.acir/onto/irandoc/NEMA0006858>
  skos:prefLabel "بقای جرم"@fa, "conservation of mass"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0006859> .

<http://www.irandoc.acir/onto/irandoc/NEMA0006859>
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0006858>, <http://www.irandoc.acir/onto/irandoc/NEMA0006857>, <http://www.irandoc.acir/onto/irandoc/NEMA0005103> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0006891> ;
  skos:prefLabel "بقای ماده"@fa, "conservation of matter"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/NEMA0006891>
  skos:prefLabel "matter (physics)"@en, "ماده"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0006859> .

<http://www.irandoc.acir/onto/irandoc/NEMA0005103>
  skos:prefLabel "نسبیت خاص"@fa, "special relativity"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0006859> .

<http://www.irandoc.acir/onto/irandoc/NEMA0006857>
  skos:prefLabel "conservation of energy"@en, "بقای انرژی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0006859> .