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

<http://www.irandoc.acir/onto/irandoc/insp0012588> skos:related <http://www.irandoc.acir/onto/irandoc/insp0012590> .
<http://www.irandoc.acir/onto/irandoc/insp0010190>
  skos:prefLabel "Solar heating"@en, "گرمایش خورشیدی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0012590> .

<http://www.irandoc.acir/onto/irandoc/insp0012590>
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0012589> ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0010190> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0012602> ;
  skos:prefLabel "Photothermal conversion"@en, "تبدیل فوتوگرمایی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/insp0012589>
  skos:prefLabel "Solar absorber-convertor"@en, "جذبنده-مبدل خورشیدی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0012590> .

<http://www.irandoc.acir/onto/irandoc/insp0012602>
  skos:prefLabel "Direct energy conversion"@en, "تبدیل مستقیم انرژی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0012590> .