@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81917b07-f913-49ec-856b-8415c54d5385> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81917b07-f913-49ec-856b-8415c54d5385> .