@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81d7d2e9-3ab0-4787-9873-2b7e7bbdda89> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81d7d2e9-3ab0-4787-9873-2b7e7bbdda89> .