@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81c41a7e-1aa7-4ae4-a359-046425253c57> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81c41a7e-1aa7-4ae4-a359-046425253c57> .