@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81b23f1c-0959-4f37-bbd9-555df9e8c7df> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81b23f1c-0959-4f37-bbd9-555df9e8c7df> .