@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81de0f1b-a139-470c-a879-e7e1e9f9af66> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81de0f1b-a139-470c-a879-e7e1e9f9af66> .