@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81c640a8-20cb-4c0d-b99a-3a3663371ca1> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81c640a8-20cb-4c0d-b99a-3a3663371ca1> .