@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81612fe9-3f94-4ad3-9de0-1a65f869a692> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81612fe9-3f94-4ad3-9de0-1a65f869a692> .