@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ff1aad28-5517-40d9-b143-3ee075918ce8> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ff1aad28-5517-40d9-b143-3ee075918ce8> .