@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81623c1d-a1e3-4f90-b91b-d5c164926e94> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81623c1d-a1e3-4f90-b91b-d5c164926e94> .