@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/57f11afb-fb20-4a29-b839-8aa7230292c8> rdfs:isDefinedBy <https://stad.gent/data/blank_node/57f11afb-fb20-4a29-b839-8aa7230292c8> .