@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81f71d57-74fb-4d29-b15f-a4632ef240b9> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81f71d57-74fb-4d29-b15f-a4632ef240b9> .