@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/87f7a911-2df7-4d99-8cfe-d23122844c66> rdfs:isDefinedBy <https://stad.gent/data/blank_node/87f7a911-2df7-4d99-8cfe-d23122844c66> .