@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ac81f4d9-a0a4-4844-837a-2cd43782da24> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ac81f4d9-a0a4-4844-837a-2cd43782da24> .