@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/a81ddc7a-9220-433a-b1c0-457a6412619f> rdfs:isDefinedBy <https://stad.gent/data/blank_node/a81ddc7a-9220-433a-b1c0-457a6412619f> .