@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81b4f522-fb21-4392-8e66-d29e9993a97f> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81b4f522-fb21-4392-8e66-d29e9993a97f> .