@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/b81db669-879c-40a6-a446-c8c238f129e8> rdfs:isDefinedBy <https://stad.gent/data/blank_node/b81db669-879c-40a6-a446-c8c238f129e8> .