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

<http://www.irandoc.acir/onto/irandoc/NEMA0009400>
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0009409>, <http://www.irandoc.acir/onto/irandoc/NEMA0004328> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0009431> ;
  skos:prefLabel "دیگ‌های بخار"@fa, "boilers"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/NEMA0009409>
  skos:prefLabel "furnaces"@en, "کوره‌ها"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0009400> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004328>
  skos:prefLabel "کشتی‌های بخار"@fa, "steamships"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0009400> .

<http://www.irandoc.acir/onto/irandoc/NEMA0009431>
  skos:prefLabel "مهندسی مکانیک"@fa, "mechanical engineering"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0009400> .