@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81c49a1d-c817-4708-a638-652340b0ce0a> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81c49a1d-c817-4708-a638-652340b0ce0a> .