@prefix gacs: . @prefix rdf: . @prefix dc: . @prefix rdfs: . @prefix owl: . @prefix skos: . gacs:def_5a7c94c3 rdf:value "The rate of change of position in a given direction which is composed of both speed and direction."@en ; dc:source , ; a . rdfs:label "Concept definition"@en ; a owl:Class . gacs:C6235 skos:definition gacs:def_5a7c94c3 .