@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/87a64e59-6560-414b-b3ad-09af7b44072c> rdfs:isDefinedBy <https://stad.gent/data/blank_node/87a64e59-6560-414b-b3ad-09af7b44072c> .