@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/28b509a3-8ad9-47ad-8423-6273ccccf151> rdfs:isDefinedBy <https://stad.gent/data/blank_node/28b509a3-8ad9-47ad-8423-6273ccccf151> .