@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81a8550d-d853-40a2-80fc-c88506182d49> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81a8550d-d853-40a2-80fc-c88506182d49> .