@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ff4aa9e1-e217-487f-8a14-c53ea91b867b> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ff4aa9e1-e217-487f-8a14-c53ea91b867b> .