@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ff9b9f63-df8f-4613-ac09-b91815f22034> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ff9b9f63-df8f-4613-ac09-b91815f22034> .