@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81b9b421-5ff7-413b-a033-56d84d053c2b> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81b9b421-5ff7-413b-a033-56d84d053c2b> .