@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81ef9ee5-8549-4110-86ee-97250e89b8cf> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81ef9ee5-8549-4110-86ee-97250e89b8cf> .