@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81ffd64d-0c1c-42d9-a5d1-f4dc7505955f> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81ffd64d-0c1c-42d9-a5d1-f4dc7505955f> .