@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81f28e78-9edf-4e41-b70d-be66e9079aef> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81f28e78-9edf-4e41-b70d-be66e9079aef> .