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

<http://www.irandoc.acir/onto/irandoc/AGR0005144>
  skos:altLabel "Lanthanides"@en, "لانتانیدها"@fa ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/AGR0005194> ;
  skos:prefLabel "Rare earth elements"@en, "عناصر کمیاب خاک‌ها"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/AGR0005194>
  skos:prefLabel "Metallic elements"@en, "عناصر فلزی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/AGR0005144> .