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

<http://www.irandoc.acir/onto/irandoc/INSP0008178>
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0003405>, <http://www.irandoc.acir/onto/irandoc/INSP0008179>, <http://www.irandoc.acir/onto/irandoc/INSP000287>, <http://www.irandoc.acir/onto/irandoc/INSP0010921> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/INSP0008182> ;
  skos:prefLabel "تصفیه فاضلاب"@fa, "sewage treatment"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/INSP000287>
  skos:prefLabel "تصفیه پساب"@fa, "wastewater treatment"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0008178> .

<http://www.irandoc.acir/onto/irandoc/INSP0008182>
  skos:prefLabel "پسماندورزی"@fa, "waste handling"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/INSP0008178> .

<http://www.irandoc.acir/onto/irandoc/INSP0008179>
  skos:prefLabel "تصفیه لجن"@fa, "sludge treatment"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0008178> .

<http://www.irandoc.acir/onto/irandoc/INSP0003405>
  skos:prefLabel "تسهیلات عمومی"@fa, "public utilities"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0008178> .

<http://www.irandoc.acir/onto/irandoc/INSP0010921>
  skos:prefLabel "مهندسی بهداشت"@fa, "sanitary engineering"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/INSP0008178> .