@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/668be4af-4d75-4b73-8837-8f5595c6dc53> rdfs:isDefinedBy <https://stad.gent/data/blank_node/668be4af-4d75-4b73-8837-8f5595c6dc53> .