@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81f9b6d8-224f-47af-8e68-e1bf796a846b> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81f9b6d8-224f-47af-8e68-e1bf796a846b> .