@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81d57822-5a88-4422-82cf-ce0e418ef973> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81d57822-5a88-4422-82cf-ce0e418ef973> .