@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ff15459a-03e7-40f8-9906-38909aca93ac> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ff15459a-03e7-40f8-9906-38909aca93ac> .