@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81519c27-e85b-4699-8e40-fe989bd30a41> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81519c27-e85b-4699-8e40-fe989bd30a41> .