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

<http://www.irandoc.acir/onto/irandoc/insp0011091>
  skos:prefLabel "Internal combustion engine"@en, "موتور درون‌سوز"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0011090> .

<http://www.irandoc.acir/onto/irandoc/insp0008739>
  skos:prefLabel "Turbines"@en, "توربین"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0011090> .

<http://www.irandoc.acir/onto/irandoc/insp0011090>
  skos:altLabel "موتور وانکل"@fa, "wankel engine"@en ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0008739> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0011091> ;
  skos:prefLabel "Rotary engine"@en, "موتور چرخشی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .