@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ef4adab6-2c74-40c8-83ad-19540c43231d> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ef4adab6-2c74-40c8-83ad-19540c43231d> .