@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81bdf19f-6a88-4111-b923-21f5dfc020f4> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81bdf19f-6a88-4111-b923-21f5dfc020f4> .