@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/b81fdf49-402e-44d8-9cc3-1a45e809ce21> rdfs:isDefinedBy <https://stad.gent/data/blank_node/b81fdf49-402e-44d8-9cc3-1a45e809ce21> .