@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81c19d3e-8bf5-41a6-bbbb-1f31f46da820> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81c19d3e-8bf5-41a6-bbbb-1f31f46da820> .