@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/87c57868-aff0-421c-964d-13afca93b32c> rdfs:isDefinedBy <https://stad.gent/data/blank_node/87c57868-aff0-421c-964d-13afca93b32c> .