@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/1b81f190-9fa1-41f7-8b5b-60524907cecf> rdfs:isDefinedBy <https://stad.gent/data/blank_node/1b81f190-9fa1-41f7-8b5b-60524907cecf> .