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

<http://www.irandoc.acir/onto/irandoc/NEMA0008459>
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0008487>, <http://www.irandoc.acir/onto/irandoc/NEMA0008467> ;
  skos:prefLabel "دیازین‌ها"@fa, "diazines"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/NEMA0008467>
  skos:prefLabel "ترکیبات آلی نیتروژن"@fa, "organonitrogen compounds"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0008459> .

<http://www.irandoc.acir/onto/irandoc/NEMA0008487>
  skos:prefLabel "ترکیبات حلقه‌ای ناهمگن"@fa, "heterocyclic compounds"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0008459> .