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

<http://www.irandoc.acir/onto/irandoc/1234>
  skos:narrower <http://www.irandoc.acir/onto/irandoc/1236>, <http://www.irandoc.acir/onto/irandoc/1235> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/1450> ;
  skos:prefLabel "trace"@en, "رد"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/1450>
  skos:prefLabel "مقوله تهی"@fa, "empty category"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/1234> .

<http://www.irandoc.acir/onto/irandoc/1236>
  skos:prefLabel "رد گروه اسمی"@fa, "NP-trace"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/1234> .

<http://www.irandoc.acir/onto/irandoc/1235>
  skos:prefLabel "رد پرسشواژه"@fa, "wh-trace"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/1234> .