@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81b39dea-3dff-449f-be7b-c0e75ac6538b> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81b39dea-3dff-449f-be7b-c0e75ac6538b> .