@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81558e49-e1b3-48b8-8ab4-b7aee679fd17> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81558e49-e1b3-48b8-8ab4-b7aee679fd17> .