@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ff87f5ad-5987-4b04-8aa5-5be59c4fd71a> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ff87f5ad-5987-4b04-8aa5-5be59c4fd71a> .