@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81a1abf6-0bd9-4a9f-9cc4-fcc87352c532> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81a1abf6-0bd9-4a9f-9cc4-fcc87352c532> .