@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81f337f2-6619-4250-8426-2aaf7496b62a> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81f337f2-6619-4250-8426-2aaf7496b62a> .