@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/3997f171-f507-4af0-97a7-55b0ee6cbf8a> rdfs:isDefinedBy <https://stad.gent/data/blank_node/3997f171-f507-4af0-97a7-55b0ee6cbf8a> .