@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/57a1ca6a-0825-4c57-9020-d81400aa57f6> rdfs:isDefinedBy <https://stad.gent/data/blank_node/57a1ca6a-0825-4c57-9020-d81400aa57f6> .