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

<http://www.irandoc.acir/onto/irandoc/insp0015040>
  skos:prefLabel "Tin alloy"@en, "آلیاژ قلع"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0015039> .

<http://www.irandoc.acir/onto/irandoc/insp0015046>
  skos:prefLabel "Copper alloy"@en, "آلیاژ مس"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0015039> .

<http://www.irandoc.acir/onto/irandoc/insp0015039>
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0015046>, <http://www.irandoc.acir/onto/irandoc/insp0015040> ;
  skos:prefLabel "Bronze"@en, "برنز"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .