@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/a81af3b1-a638-42f7-9579-9f3429be2836> rdfs:isDefinedBy <https://stad.gent/data/blank_node/a81af3b1-a638-42f7-9579-9f3429be2836> .