@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ff9f990d-b79d-4a19-8d15-1e304a9975b7> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ff9f990d-b79d-4a19-8d15-1e304a9975b7> .