@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/1991e191-add6-4504-b49f-ac8007717388> rdfs:isDefinedBy <https://stad.gent/data/blank_node/1991e191-add6-4504-b49f-ac8007717388> .