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

<http://www.irandoc.acir/onto/irandoc/NEMA0009402>
  skos:prefLabel "روغن‌کاری (مکانیک)"@fa, "lubrication"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0009401> .

<http://www.irandoc.acir/onto/irandoc/NEMA0009401>
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0009402> ;
  skos:prefLabel "خودروان‌سازی"@fa, "self lubrication"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .