@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81b6de65-934a-4c82-aaef-1ea3dc670669> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81b6de65-934a-4c82-aaef-1ea3dc670669> .