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

<http://www.irandoc.acir/onto/irandoc/NEMA0009403>
  skos:prefLabel "سوپاپ‌ها"@fa, "valves"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0001921> .

<http://www.irandoc.acir/onto/irandoc/NEMA0001920>
  skos:prefLabel "خطوط لوله نفت"@fa, "petroleum pipelines"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0001921> .

<http://www.irandoc.acir/onto/irandoc/NEMA0001919>
  skos:prefLabel "خطوط لوله گاز"@fa, "gas pipelines"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0001921> .

<http://www.irandoc.acir/onto/irandoc/NEMA0006823>
  skos:prefLabel "لوله‌ها"@fa, "pipes"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0001921> .

<http://www.irandoc.acir/onto/irandoc/NEMA0001921>
  skos:prefLabel "خطوط لوله"@fa, "pipelines"@en ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0009396>, <http://www.irandoc.acir/onto/irandoc/NEMA0009403>, <http://www.irandoc.acir/onto/irandoc/NEMA0009424>, <http://www.irandoc.acir/onto/irandoc/NEMA0006823> ;
  a skos:Concept, <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0001936> ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0001919>, <http://www.irandoc.acir/onto/irandoc/NEMA0001920> .

<http://www.irandoc.acir/onto/irandoc/NEMA0001936>
  skos:prefLabel "زیرساخت‌ها (حمل‌ونقل)"@fa, "infrastructures (transport)"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0001921> .

<http://www.irandoc.acir/onto/irandoc/NEMA0009424>
  skos:prefLabel "ماشین‌های جابجاکننده مواد"@fa, "materials handling machinery"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0001921> .

<http://www.irandoc.acir/onto/irandoc/NEMA0009396>
  skos:prefLabel "پمپ‌ها"@fa, "pumps"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0001921> .