@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81c3a3ca-2e67-4cd2-bb1a-07f7af99ed4d> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81c3a3ca-2e67-4cd2-bb1a-07f7af99ed4d> .