@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81968aff-943a-4adf-9604-739558f5bd34> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81968aff-943a-4adf-9604-739558f5bd34> .