@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/509508a1-a362-4a91-8900-0b497f4111ac> rdfs:isDefinedBy <https://stad.gent/data/blank_node/509508a1-a362-4a91-8900-0b497f4111ac> .