@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81fe54b9-d2d8-441d-9ea1-3cdda1cebb56> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81fe54b9-d2d8-441d-9ea1-3cdda1cebb56> .