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

<http://www.irandoc.acir/onto/irandoc/mathpro1032>
  skos:prefLabel "laplace equation"@en, "معادله لاپلاس"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/math0006723> .

<http://www.irandoc.acir/onto/irandoc/math0006723>
  skos:broader <http://www.irandoc.acir/onto/irandoc/mathpro1032> ;
  skos:prefLabel "معادله لاپلاس در مختصات دوکروی"@fa, "laplace equation in bispherical coordinates"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .