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

<http://www.irandoc.acir/onto/irandoc/CHMTR000021>
  skos:prefLabel "اكسید اسیدی"@fa, "acidic oxide"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CHMTR000228> .

<http://www.irandoc.acir/onto/irandoc/CHMTR000228>
  skos:related <http://www.irandoc.acir/onto/irandoc/CHMTR000021>, <http://www.irandoc.acir/onto/irandoc/CHMTR000028> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CHMTR000028>, <http://www.irandoc.acir/onto/irandoc/CHMTR000236> ;
  skos:prefLabel "كربن مونواكسید"@fa, "carbon monoxide"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CHMTR000236>
  skos:prefLabel "اجزای ناچیز هوا کره"@fa, "atmosphere teeny components"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CHMTR000228> .

<http://www.irandoc.acir/onto/irandoc/CHMTR000028>
  skos:prefLabel "آلاینده‌های نوع اول"@fa, "primary pollutants"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CHMTR000228> ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CHMTR000228> .