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

<http://www.irandoc.acir/onto/irandoc/CAB0003669>
  skos:prefLabel "گرم کننده‌ها"@fa, "heaters"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CAB0003668> .

<http://www.irandoc.acir/onto/irandoc/CAB0003668>
  skos:altLabel "heaters, air"@en ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0003669> ;
  skos:prefLabel "گرم‌کننده‌های هوایی"@fa, "air heaters"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .