@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/21f1a6cc-0851-44de-a39d-0efddcc38061> rdfs:isDefinedBy <https://stad.gent/data/blank_node/21f1a6cc-0851-44de-a39d-0efddcc38061> .