@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81ec0f94-e9eb-4656-80ab-1fa1ec5b3e43> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81ec0f94-e9eb-4656-80ab-1fa1ec5b3e43> .