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

<http://www.irandoc.acir/onto/irandoc/NEMA0004388>
  skos:prefLabel "فناوری راه‌آهن"@fa, "railway technology"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0004381> .

<http://www.irandoc.acir/onto/irandoc/NEMA0004381>
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004386> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0004388> ;
  skos:prefLabel "راه‌آهن‌های تک‌ریلی"@fa, "monorail railways"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/NEMA0004386>
  skos:prefLabel "قطارهای راه‌آهن"@fa, "railway trains"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0004381> .