@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/57ffe78a-50f6-4a89-bfd9-9682476ff7b8> rdfs:isDefinedBy <https://stad.gent/data/blank_node/57ffe78a-50f6-4a89-bfd9-9682476ff7b8> .