@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/91f550af-426e-439c-a880-ba4066b45c3a> rdfs:isDefinedBy <https://stad.gent/data/blank_node/91f550af-426e-439c-a880-ba4066b45c3a> .