@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81afa44b-9179-45bd-9c93-0053a35aab34> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81afa44b-9179-45bd-9c93-0053a35aab34> .