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

<http://www.irandoc.acir/onto/irandoc/CHEM0003643>
  skos:broader <http://www.irandoc.acir/onto/irandoc/CHEM0003646> ;
  skos:prefLabel "خوشه‌های سه‌هسته‌ای"@fa, "three nuclear clusters"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CHEM0003646>
  skos:prefLabel "خوشه‌ها"@fa, "clusters"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CHEM0003643> .