@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81d68d9b-280f-40fb-86aa-855668e5bb72> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81d68d9b-280f-40fb-86aa-855668e5bb72> .