@prefix rdfs: . @prefix owl: . @prefix gacs: . @prefix skos: . @prefix rdf: . @prefix dc: . rdfs:label "Concept definition"@en ; a owl:Class . gacs:C17701 skos:definition gacs:def_84f742df . gacs:def_84f742df rdf:value "Difference between the purchase and resale prices of a product."@en ; dc:source , ; a .