@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81ffcc95-0090-4a88-aa88-5e4ab721f07a> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81ffcc95-0090-4a88-aa88-5e4ab721f07a> .