@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ff578ad1-fb57-43ee-b5a5-7ca518543917> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ff578ad1-fb57-43ee-b5a5-7ca518543917> .