@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ns0: <http://rdf-vocabulary.ddialliance.org/xkos#> .

<http://www.irandoc.acir/onto/irandoc/AGR0003407>
  skos:broader <http://www.irandoc.acir/onto/irandoc/AGR0003409>, <http://www.irandoc.acir/onto/irandoc/AGR0008501> ;
  skos:prefLabel "Melatonin"@en, "ملاتونین"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/AGR0008501>
  skos:prefLabel "Hormones"@en, "هورمون‌ها"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:has_narrower <http://www.irandoc.acir/onto/irandoc/AGR0003407> ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/AGR0003407> .

<http://www.irandoc.acir/onto/irandoc/AGR0003409>
  skos:prefLabel "Indoles"@en, "ایندول‌ها"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:has_narrower <http://www.irandoc.acir/onto/irandoc/AGR0003407> ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/AGR0003407> .