@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/639572b6-570c-4489-90fa-b801b040e151> rdfs:isDefinedBy <https://stad.gent/data/blank_node/639572b6-570c-4489-90fa-b801b040e151> .