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

<http://www.irandoc.acir/onto/irandoc/EIT0005210>
  skos:prefLabel "boiler"@en, "دیگ بخار"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/EIT0005204> .

<http://www.irandoc.acir/onto/irandoc/EIT0005204>
  skos:broader <http://www.irandoc.acir/onto/irandoc/EIT0005210>, <http://www.irandoc.acir/onto/irandoc/EIT0012993> ;
  skos:prefLabel "دیگ بخار دریایی"@fa, "marine boiler"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/EIT0012993>
  skos:prefLabel "قطعات و تجهیزات آب‌پیما"@fa, "water craft parts and equipment"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/EIT0005204> .