@prefix rdfs: . @prefix owl: . @prefix gacs: . @prefix rdf: . @prefix dc: . @prefix skos: . rdfs:label "Concept definition"@en ; a owl:Class . gacs:def_31cacf2b rdf:value "A representation of the relationships that define a situation under study. A model may be a set of mathematical equations, a computer program, or any other type of representation, ranging from verbal statements to physical objects."@en ; dc:source ; a . gacs:C150 skos:definition gacs:def_31cacf2b .