@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81fc5e1f-a11b-4b8e-9a8a-2d5c00d60063> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81fc5e1f-a11b-4b8e-9a8a-2d5c00d60063> .