@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81cdfda5-2cc7-49b7-b5c1-61b0a7c3ac21> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81cdfda5-2cc7-49b7-b5c1-61b0a7c3ac21> .