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

<http://www.irandoc.acir/onto/irandoc/NEMA0008822>
  skos:prefLabel "مواد نسوز"@fa, "refractory materials"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0008648> .

<http://www.irandoc.acir/onto/irandoc/NEMA0008648>
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0008822>, <http://www.irandoc.acir/onto/irandoc/NEMA0008821> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0008701> ;
  skos:prefLabel "رنیم"@fa, "rhenium"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/NEMA0008701>
  skos:prefLabel "فلزات"@fa, "metals"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0008648> .

<http://www.irandoc.acir/onto/irandoc/NEMA0008821>
  skos:prefLabel "فلزات دیرگداز"@fa, "refractory metals"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0008648> .