@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81b7c522-fdaf-4fef-a828-439ce8b2f655> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81b7c522-fdaf-4fef-a828-439ce8b2f655> .