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

<http://www.irandoc.acir/onto/irandoc/NEMA0004942>
  skos:prefLabel "هواپیماهای زبرصوت"@fa, "supersonic aircraft"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004939> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004939>
  skos:altLabel "هواپیماهای نزدیک به سرعت صوت"@fa ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004940>, <http://www.irandoc.acir/onto/irandoc/NEMA0004942> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0004948> ;
  skos:prefLabel "هواپیماهای پیراصوتی"@fa, "transonic aircraft"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/NEMA0004948>
  skos:prefLabel "هواپیماها"@fa, "airplanes"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0004939> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004940>
  skos:prefLabel "هواپیماهای ترابری"@fa, "transport aircraft"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004939> .