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

<http://www.irandoc.acir/onto/irandoc/CAB0057997>
  skos:altLabel "محيط‌هاي يخبندان دايم"@fa ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0058321>, <http://www.irandoc.acir/onto/irandoc/CAB0057434> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0057999> ;
  skos:prefLabel "یخبندان دایم"@fa, "permafrost"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CAB0057434>
  skos:prefLabel "وضعیت‌های منجمد"@fa, "frozen conditions"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0057997> .

<http://www.irandoc.acir/onto/irandoc/CAB0058321>
  skos:prefLabel "خاک‌‌های قطبی"@fa, "frigid soils"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0057997> .

<http://www.irandoc.acir/onto/irandoc/CAB0057999>
  skos:prefLabel "ساختارهای یخبندانی"@fa, "frost structures"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CAB0057997> .