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

<http://www.irandoc.acir/onto/irandoc/AEM000742>
  skos:related <http://www.irandoc.acir/onto/irandoc/AEM0001371>, <http://www.irandoc.acir/onto/irandoc/AEM0001582>, <http://www.irandoc.acir/onto/irandoc/AEM000200> ;
  skos:prefLabel "Oil well"@en, "چاه نفت"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/AEM0001582>
  skos:prefLabel "Offshore structure"@en, "سازه دریایی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/AEM000742> .

<http://www.irandoc.acir/onto/irandoc/AEM0001371>
  skos:prefLabel "Oil well drilling rig"@en, "دکل حفاری چاه نفت"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/AEM000742> .

<http://www.irandoc.acir/onto/irandoc/AEM000200>
  skos:prefLabel "Drilling rig"@en, "دکل حفاری"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/AEM000742> .