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

<http://www.irandoc.acir/onto/irandoc/CAB0052662>
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0052927> ;
  skos:prefLabel "سولفونات"@fa, "sulfonate"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CAB0052927>
  skos:prefLabel "سولفونات‌ها"@fa, "sulfonates"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CAB0052662> .