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

<http://www.irandoc.acir/onto/irandoc/INSP0003393>
  skos:prefLabel "vacuum pump"@en, "تلمبه خلاء"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/INSP0003391> .

<http://www.irandoc.acir/onto/irandoc/INSP0003391>
  skos:broader <http://www.irandoc.acir/onto/irandoc/INSP0003393> ;
  skos:prefLabel "diffusion pump"@en, "تلمبه پخشی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .