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

<http://www.irandoc.acir/onto/irandoc/EIT0011409>
  skos:prefLabel "بهره‌برداری از چاه نفت"@fa, "oil well production"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/EIT0011401> .

<http://www.irandoc.acir/onto/irandoc/EIT0011401>
  skos:broader <http://www.irandoc.acir/onto/irandoc/EIT0011409> ;
  skos:prefLabel "خیزش گازی"@fa, "gas lift"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .