@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81f89551-a44f-49dc-89bb-44c0759b21c3> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81f89551-a44f-49dc-89bb-44c0759b21c3> .