@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/509cafbf-8686-45af-aa4c-88abb18bf8c3> rdfs:isDefinedBy <https://stad.gent/data/blank_node/509cafbf-8686-45af-aa4c-88abb18bf8c3> .