@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81c9cee9-09a6-472f-8694-9b34fc3f3e16> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81c9cee9-09a6-472f-8694-9b34fc3f3e16> .