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

<http://www.irandoc.acir/onto/irandoc/INSP0007002>
  skos:prefLabel "نورکشسانی"@fa, "photoelasticity"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0004928> .

<http://www.irandoc.acir/onto/irandoc/INSP0004929>
  skos:prefLabel "دوشکستی"@fa, "birefringence"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/INSP0004928> .

<http://www.irandoc.acir/onto/irandoc/INSP0004928>
  skos:altLabel "stress birefringence"@en ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0007002> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/INSP0004929> ;
  skos:prefLabel "دوشکستی مکانیکی"@fa, "mechanical birefringence"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .