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

<http://www.irandoc.acir/onto/irandoc/insp0012257>
  skos:prefLabel "Acoustoelectric effect"@en, "اثر برقاصوتی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0002656> .

<http://www.irandoc.acir/onto/irandoc/insp0007811>
  skos:prefLabel "Piezoelectric materials"@en, "مواد فشاربرق"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0002656> .

<http://www.irandoc.acir/onto/irandoc/insp0002657>
  skos:prefLabel "Polar semiconductor"@en, "نیم‌‌رسانای قطبی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0002656> .

<http://www.irandoc.acir/onto/irandoc/insp0002656>
  skos:related <http://www.irandoc.acir/onto/irandoc/insp0012257> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0002657>, <http://www.irandoc.acir/onto/irandoc/insp0007811> ;
  skos:prefLabel "Piezoelectric semiconductor"@en, "نیم‌رسانای فشاربرقی"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .