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

<http://www.irandoc.acir/onto/irandoc/insp0013144>
  skos:prefLabel "Optimal control"@en, "واپایش بهینه"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0013136> .

<http://www.irandoc.acir/onto/irandoc/insp0013136>
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0013144> ;
  skos:prefLabel "Fuel optimal control"@en, "واپایش بهینه سوخت"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .