@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/491f6171-e588-46af-893b-f04b37cd06de> rdfs:isDefinedBy <https://stad.gent/data/blank_node/491f6171-e588-46af-893b-f04b37cd06de> .