@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81dbcc8d-df4e-499f-8e06-42b74991cc2d> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81dbcc8d-df4e-499f-8e06-42b74991cc2d> .