@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81413c9e-1616-4dde-9cff-750f15a89686> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81413c9e-1616-4dde-9cff-750f15a89686> .