@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81e814d8-fbe0-4b9b-9aa3-2a5e1a92301e> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81e814d8-fbe0-4b9b-9aa3-2a5e1a92301e> .