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

<http://www.irandoc.acir/onto/irandoc/chmtr000038>
  skos:prefLabel "آلودگی هوا"@fa, "air pollution"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/chmtr000385> .

<http://www.irandoc.acir/onto/irandoc/chmtr000244>
  skos:prefLabel "هوا کره"@fa, "atmosphere"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/chmtr000238>
  skos:prefLabel "لایه اوزون"@fa, "ozone layer"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/chmtr000385> .

<http://www.irandoc.acir/onto/irandoc/chmtr000387>
  skos:prefLabel "گاز‌های طبیعی"@fa, "natural gases"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/chmtr000385> .

<http://www.irandoc.acir/onto/irandoc/chmtr000152>
  skos:prefLabel "چرخه نابودی اوزون"@fa, "ozone destruction cycle"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/chmtr000385> .

<http://www.irandoc.acir/onto/irandoc/chmtr000045>
  skos:prefLabel "تابش فرا‌بنفش"@fa, "ultraviolet ray"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/chmtr000385> .

<http://www.irandoc.acir/onto/irandoc/chmtr000385>
  skos:related <http://www.irandoc.acir/onto/irandoc/chmtr000244>, <http://www.irandoc.acir/onto/irandoc/chmtr000038>, <http://www.irandoc.acir/onto/irandoc/chmtr000239>, <http://www.irandoc.acir/onto/irandoc/chmtr000152>, <http://www.irandoc.acir/onto/irandoc/chmtr000045>, <http://www.irandoc.acir/onto/irandoc/chmtr000238> ;
  skos:prefLabel "سی.ان.جی"@fa, "c.n.g"@en ;
  a skos:Concept, <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/chmtr000387>, <http://www.irandoc.acir/onto/irandoc/chmtr000129> ;
  skos:scopeNote "گاز طبیعی فشرده"@fa .

<http://www.irandoc.acir/onto/irandoc/chmtr000129>
  skos:prefLabel "فراورده‌های پتروشیمیایی"@fa, "petrochemical products"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/chmtr000385> .

<http://www.irandoc.acir/onto/irandoc/chmtr000239>
  skos:prefLabel "استراتوسفر"@fa, "stratosphere"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/chmtr000385> .