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

<http://rdf-vocabulary.ddialliance.org/xkos#type> rdfs:label "type"@en, "نوع"@fa .
<http://www.irandoc.acir/onto/irandoc/3284d3ff-ea72-4711-a99a-310e37d181dd>
  ns0:type skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/7fc8e960-d2c3-425f-9bc5-2990bf2b3fa1> ;
  skos:prefLabel "Optical vortices"@en, "گردابه‌های نوری"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/7fc8e960-d2c3-425f-9bc5-2990bf2b3fa1>
  skos:prefLabel "Angular momentum of light"@en, "تکانه زاویه‌ای نور"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/3284d3ff-ea72-4711-a99a-310e37d181dd> .