@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/509fe405-4c1d-48bc-ade8-25b66f72ed81> rdfs:isDefinedBy <https://stad.gent/data/blank_node/509fe405-4c1d-48bc-ade8-25b66f72ed81> .