@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/509ca445-1c73-48d4-8577-3105a0e089fe> rdfs:isDefinedBy <https://stad.gent/data/blank_node/509ca445-1c73-48d4-8577-3105a0e089fe> .