@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/87ac4900-433a-4937-88ae-f1abaa57cd73> rdfs:isDefinedBy <https://stad.gent/data/blank_node/87ac4900-433a-4937-88ae-f1abaa57cd73> .