@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81c9cb68-9043-423c-825e-ec9099e2c84a> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81c9cb68-9043-423c-825e-ec9099e2c84a> .