@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81e661d4-0bb7-491a-8516-41bf0a3607aa> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81e661d4-0bb7-491a-8516-41bf0a3607aa> .