@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81e74e1d-17db-4db2-9056-598d90fd018b> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81e74e1d-17db-4db2-9056-598d90fd018b> .