@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/57921f79-18d7-408b-ba74-cff546bcf050> rdfs:isDefinedBy <https://stad.gent/data/blank_node/57921f79-18d7-408b-ba74-cff546bcf050> .