@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ns0: <http://rdf-vocabulary.ddialliance.org/xkos#> .

<http://rdf-vocabulary.ddialliance.org/xkos#type> rdfs:label "type"@en, "نوع"@fa .
<http://www.irandoc.acir/onto/irandoc/dcf48409-af3f-4517-b58d-7ec6c95351f3>
  skos:prefLabel "Optical materials & elements"@en, "مواد و عناصر نوری"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/ccb5afcb-29c8-48d3-849c-f5bc325b8105> .

<http://www.irandoc.acir/onto/irandoc/ccb5afcb-29c8-48d3-849c-f5bc325b8105>
  ns0:type skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/dcf48409-af3f-4517-b58d-7ec6c95351f3> ;
  skos:prefLabel "Nonlinear optical materials"@en, "مواد نوری غیرخطی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .