@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81ddf93e-a5eb-4b21-85c8-7404f20b5cff> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81ddf93e-a5eb-4b21-85c8-7404f20b5cff> .