@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81cf2270-ee66-4c72-90d9-a8d85305d45a> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81cf2270-ee66-4c72-90d9-a8d85305d45a> .