@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ff9b1dd9-c245-4e87-8550-0e0611c8afb2> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ff9b1dd9-c245-4e87-8550-0e0611c8afb2> .