@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/18ffb1a7-0c87-46f4-9e2b-a9c1f13d968b> rdfs:isDefinedBy <https://stad.gent/data/blank_node/18ffb1a7-0c87-46f4-9e2b-a9c1f13d968b> .