@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81c6e39b-5d15-439f-b06f-ffaab488632a> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81c6e39b-5d15-439f-b06f-ffaab488632a> .