@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81b1f854-77ec-4fa3-8a66-5a4e6d047881> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81b1f854-77ec-4fa3-8a66-5a4e6d047881> .