@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/57821c8e-0447-497f-8719-371b56cb87df> rdfs:isDefinedBy <https://stad.gent/data/blank_node/57821c8e-0447-497f-8719-371b56cb87df> .