@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/91af730e-5b50-4069-b9ff-ef7e2913526c> rdfs:isDefinedBy <https://stad.gent/data/blank_node/91af730e-5b50-4069-b9ff-ef7e2913526c> .