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

<http://www.irandoc.acir/onto/irandoc/EIT0005589>
  skos:prefLabel "سامانه جهت‌یاب رادیویی"@fa, "radio direction finding system"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/EIT0005588> .

<http://www.irandoc.acir/onto/irandoc/EIT0005588>
  skos:broader <http://www.irandoc.acir/onto/irandoc/EIT0005589> ;
  skos:prefLabel "Adcock direction finder"@en, "جهت‌یاب ادکاک"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .