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

<http://www.irandoc.acir/onto/irandoc/insp000418>
  skos:prefLabel "Einstein-maxwell equation"@en, "معادله اینشتین-ماکسول"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0007370> .

<http://www.irandoc.acir/onto/irandoc/insp0007370>
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0007504>, <http://www.irandoc.acir/onto/irandoc/insp000418>, <http://www.irandoc.acir/onto/irandoc/insp0002952> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0007389> ;
  skos:prefLabel "Field equation"@en, "معادله پایکار"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/insp0002952>
  skos:prefLabel "Einstein field equation"@en, "معادله میدان اینشتین"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0007370> .

<http://www.irandoc.acir/onto/irandoc/insp0007389>
  skos:prefLabel "Equation"@en, "معادله"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/insp0007370> .

<http://www.irandoc.acir/onto/irandoc/insp0007504>
  skos:prefLabel "Sine-gordon equation"@en, "معادله مثلثاتی-گوردن"@fa ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/insp0007370> .