@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81ac8e17-9c08-4759-b985-dd679ed39de4> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81ac8e17-9c08-4759-b985-dd679ed39de4> .