@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81e7c6ba-4ec3-46de-a9c1-2dc25fc2460d> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81e7c6ba-4ec3-46de-a9c1-2dc25fc2460d> .