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

<http://www.irandoc.acir/onto/irandoc/insp0007828>
  skos:prefLabel "Optical fibres"@en, "الیاف نوری"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0007827> .

<http://www.irandoc.acir/onto/irandoc/insp0007827>
  skos:altLabel "optical fiber theory"@en ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0007828>, <http://www.irandoc.acir/onto/irandoc/insp0005029> ;
  skos:prefLabel "Optical fibre theory"@en, "نظریه تار نوری"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/insp0005029>
  skos:prefLabel "Optical waveguide theory"@en, "نظریه موج‌بر نوری"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0007827> .