@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81b909d9-d00d-4534-841a-ba6db3d3f218> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81b909d9-d00d-4534-841a-ba6db3d3f218> .