@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81e66df8-9a04-461f-b3da-c84cfd749071> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81e66df8-9a04-461f-b3da-c84cfd749071> .