@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81dc2fd6-cfee-495d-9aaf-6c52134412dc> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81dc2fd6-cfee-495d-9aaf-6c52134412dc> .