@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/91af6e9e-9109-4791-a91d-2431c6486663> rdfs:isDefinedBy <https://stad.gent/data/blank_node/91af6e9e-9109-4791-a91d-2431c6486663> .