@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81af8790-0fa2-4576-a5b4-a521a78f73d8> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81af8790-0fa2-4576-a5b4-a521a78f73d8> .