@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81e8f6b1-4306-4424-8cce-05d51f44da55> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81e8f6b1-4306-4424-8cce-05d51f44da55> .