@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81a69f26-829e-491e-9d03-168aadadf39f> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81a69f26-829e-491e-9d03-168aadadf39f> .