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

<http://www.irandoc.acir/onto/irandoc/CAB0005000>
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CAB0004997>, <http://www.irandoc.acir/onto/irandoc/CAB0004998>, <http://www.irandoc.acir/onto/irandoc/CAB0004999> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0005001> ;
  skos:prefLabel "pollution indicators"@en, "شاخص‌های آلودگی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CAB0004998>
  skos:prefLabel "نیاز زیست شیمیایی به اکسیژن"@fa, "biochemical oxygen demand"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0005000> .

<http://www.irandoc.acir/onto/irandoc/CAB0005001>
  skos:prefLabel "pollution and pollutants"@en, "آلودگی و آلاینده‌ها"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CAB0005000> .

<http://www.irandoc.acir/onto/irandoc/CAB0004999>
  skos:prefLabel "کیفیت هوا"@fa, "air quality"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0005000> .

<http://www.irandoc.acir/onto/irandoc/CAB0004997>
  skos:prefLabel "نیاز‌شیمیایی به اکسیژن"@fa, "chemical oxygen demand"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0005000> .