@prefix gacs: . @prefix skos: . @prefix rdfs: . @prefix owl: . @prefix rdf: . @prefix dc: . gacs:C2027 skos:definition gacs:def_73311723 . rdfs:label "Concept definition"@en ; a owl:Class . gacs:def_73311723 rdf:value "The physical or physiological processes by which substances, tissue, cells, etc. take up or take in other substances or energy."@en ; dc:source ; a .