@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/1f81b3c7-43d9-49aa-8ad8-ea6970f25154> rdfs:isDefinedBy <https://stad.gent/data/blank_node/1f81b3c7-43d9-49aa-8ad8-ea6970f25154> .