@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/b9f1b7b1-9871-4643-9b87-a09c1ad20955> rdfs:isDefinedBy <https://stad.gent/data/blank_node/b9f1b7b1-9871-4643-9b87-a09c1ad20955> .