@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81a1861f-c7a7-462e-9915-8bb84948c334> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81a1861f-c7a7-462e-9915-8bb84948c334> .