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

<http://www.irandoc.acir/onto/irandoc/CHEM0006197>
  skos:prefLabel "بستر لجن‌خشک‌کن"@fa, "sludge drying bed"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CHEM0001107> .

<http://www.irandoc.acir/onto/irandoc/CHEM0001107>
  skos:related <http://www.irandoc.acir/onto/irandoc/CHEM0006197> ;
  skos:prefLabel "anaerobic sludge"@en, "لجن بی‌هوازی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .