@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81ba4420-c630-44c4-8ff8-b9d544c7e858> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81ba4420-c630-44c4-8ff8-b9d544c7e858> .