@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81a9162b-002d-4a18-9b19-2c86687a5b79> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81a9162b-002d-4a18-9b19-2c86687a5b79> .