@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81b8af69-d995-4a3e-97b5-327178268766> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81b8af69-d995-4a3e-97b5-327178268766> .