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

<http://www.irandoc.acir/onto/irandoc/CAB0047217>
  a skos:Concept, <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept> ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0045901>, <http://www.irandoc.acir/onto/irandoc/CAB0045904>, <http://www.irandoc.acir/onto/irandoc/CAB0047218>, <http://www.irandoc.acir/onto/irandoc/CAB0045900>, <http://www.irandoc.acir/onto/irandoc/CAB0057485> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0047218> ;
  skos:prefLabel "نوردورگی"@fa, "photoperiodism"@en ;
  skos:altLabel "photoperiodicity"@en .

<http://www.irandoc.acir/onto/irandoc/CAB0045901>
  skos:prefLabel "دوره نوری"@fa, "photoperiod"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0047217> .

<http://www.irandoc.acir/onto/irandoc/CAB0047218>
  skos:prefLabel "آهنگ‌های زیستی"@fa, "biological rhythms"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CAB0047217> ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0047217> .

<http://www.irandoc.acir/onto/irandoc/CAB0045904>
  skos:prefLabel "روابط نوری"@fa, "light relations"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0047217> .

<http://www.irandoc.acir/onto/irandoc/CAB0057485>
  skos:prefLabel "نور"@fa, "light"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0047217> .

<http://www.irandoc.acir/onto/irandoc/CAB0045900>
  skos:prefLabel "dark"@en, "تاریکی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0047217> .