@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81c3f30d-15a7-45f6-b334-0d63bc4b3bfa> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81c3f30d-15a7-45f6-b334-0d63bc4b3bfa> .