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

<http://www.irandoc.acir/onto/irandoc/NEMA000574>
  skos:prefLabel "گیاخاک"@fa, "humus"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA000558> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002596>
  skos:prefLabel "زغال‌سنگ"@fa, "coal"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA000558> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002616>
  skos:prefLabel "سوخت‌ها"@fa, "fuels"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA000558> .

<http://www.irandoc.acir/onto/irandoc/NEMA000558>
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA000574>, <http://www.irandoc.acir/onto/irandoc/NEMA0002616>, <http://www.irandoc.acir/onto/irandoc/NEMA0002597>, <http://www.irandoc.acir/onto/irandoc/NEMA0002596> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA000578> ;
  skos:prefLabel "خاک‌های آلی"@fa, "organic soils"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/NEMA0002597>
  skos:prefLabel "زغال‌سنگ نارس"@fa, "peat"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA000558> .

<http://www.irandoc.acir/onto/irandoc/NEMA000578>
  skos:prefLabel "soils"@en, "خاک‌ها"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA000558> .