@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81db3625-5aa1-4ef4-8144-a2e473c80304> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81db3625-5aa1-4ef4-8144-a2e473c80304> .