@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ef6a50c7-138d-496a-8eec-1af6772aed71> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ef6a50c7-138d-496a-8eec-1af6772aed71> .