@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ffdf1ae1-b9c1-404d-88bf-58952791be1d> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ffdf1ae1-b9c1-404d-88bf-58952791be1d> .