@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81c90f69-ac1a-4c12-959c-bd7ac81738ff> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81c90f69-ac1a-4c12-959c-bd7ac81738ff> .