@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81dd19c2-9f1a-4e5c-b688-1bf99a3c4063> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81dd19c2-9f1a-4e5c-b688-1bf99a3c4063> .