@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/21f1c171-525a-4cf7-8b15-e4d1bd5074fa> rdfs:isDefinedBy <https://stad.gent/data/blank_node/21f1c171-525a-4cf7-8b15-e4d1bd5074fa> .