@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81cc501c-b5a9-4065-b639-84e46b22abf9> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81cc501c-b5a9-4065-b639-84e46b22abf9> .