@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/b21a33aa-dc54-4456-af8f-9191382c3b69> rdfs:isDefinedBy <https://stad.gent/data/blank_node/b21a33aa-dc54-4456-af8f-9191382c3b69> .