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

<http://www.irandoc.acir/onto/irandoc/insp0009998>
  skos:prefLabel "Steel industry"@en, "صنعت فولاد"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0001679> .

<http://www.irandoc.acir/onto/irandoc/insp0001700>
  skos:prefLabel "Surface chemistry"@en, "شیمی سطح"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0001679> .

<http://www.irandoc.acir/onto/irandoc/insp0001679>
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0009998>, <http://www.irandoc.acir/onto/irandoc/insp0001700> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0001681> ;
  skos:prefLabel "Pickling (materials processing)"@en, "قطعه‌شویی (فراوری مواد)"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/insp0001681>
  skos:prefLabel "Surface cleaning"@en, "تمیزکاری سطح"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0001679> .