@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81da6b52-3309-43d7-bc93-8ec8741ddd2e> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81da6b52-3309-43d7-bc93-8ec8741ddd2e> .