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

<http://www.irandoc.acir/onto/irandoc/NEMA0002557>
  skos:prefLabel "سنگ‌های آذرین"@fa, "igneous rocks"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/NEMA0002556> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002556>
  skos:altLabel "ROCAS ALCALINAS"@en ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002942>, <http://www.irandoc.acir/onto/irandoc/NEMA0002555> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/NEMA0002557> ;
  skos:prefLabel "سنگ‌های قلیایی"@fa, "basic rocks"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/NEMA0002942>
  skos:prefLabel "خصلت قلیایی"@fa, "alkalinity"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002556> .

<http://www.irandoc.acir/onto/irandoc/NEMA0002555>
  skos:prefLabel "سنگ‌های اسیدی"@fa, "acid rocks"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/NEMA0002556> .