@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/b81fc3b4-b0ed-4cba-9787-b87925cc1b71> rdfs:isDefinedBy <https://stad.gent/data/blank_node/b81fc3b4-b0ed-4cba-9787-b87925cc1b71> .