@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81b43f6c-0fc8-45ac-b139-0dc41f14e1c0> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81b43f6c-0fc8-45ac-b139-0dc41f14e1c0> .