@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ef904e21-f1b3-41ce-9791-0ffb3adb8abc> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ef904e21-f1b3-41ce-9791-0ffb3adb8abc> .