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

<http://www.irandoc.acir/onto/irandoc/INSP0004422>
  skos:altLabel "D-layer"@en ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/INSP0004427> ;
  skos:prefLabel "D-region"@en, "منطقه-دی."@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/INSP0004427>
  skos:prefLabel "یون‌سپهر"@fa, "ionosphere"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/INSP0004422> .