@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ns0: <http://rdf-vocabulary.ddialliance.org/xkos#> .

<http://www.irandoc.acir/onto/irandoc/AGR0001891>
  skos:prefLabel "Maintenance"@en, "نگهداری (ساختمان و تجهیزات)"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  ns0:has_narrower <http://www.irandoc.acir/onto/irandoc/AGR0001890> ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/AGR0001890> .

<http://www.irandoc.acir/onto/irandoc/AGR0001890>
  skos:altLabel "Greasing equipment"@en, "ابزار گریسکاری"@fa ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/AGR0001891> ;
  skos:prefLabel "Lubrication"@en, "روان‌سازی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .