@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81bc556c-ec2d-4b1a-aac6-a3eebe69b181> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81bc556c-ec2d-4b1a-aac6-a3eebe69b181> .