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

<http://www.irandoc.acir/onto/irandoc/INSP0004989>
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0004880> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/INSP0004991>, <http://www.irandoc.acir/onto/irandoc/INSP000112> ;
  skos:prefLabel "جفتگر راستایی نوری"@fa, "optical directional coupler"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/INSP0004880>
  skos:prefLabel "نورشناسی یکپارچه"@fa, "integrated optics"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0004989> .

<http://www.irandoc.acir/onto/irandoc/INSP0004991>
  skos:prefLabel "جفتگر نوری"@fa, "optical coupler"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/INSP0004989> .

<http://www.irandoc.acir/onto/irandoc/INSP000112>
  skos:prefLabel "جفتگر راستایی"@fa, "directional coupler"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/INSP0004989> .