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

<http://www.irandoc.acir/onto/irandoc/insp0002956>
  skos:prefLabel "Special relativity"@en, "نسبیت خاص"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0011867> .

<http://www.irandoc.acir/onto/irandoc/insp0011867>
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0002956> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0011868> ;
  skos:prefLabel "Tachyon"@en, "تاکیون"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/insp0011868>
  skos:prefLabel "Hypothetical particle"@en, "ذره فرضی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0011867> .