@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81f90ac7-2e56-4710-b012-a41c1b20021d> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81f90ac7-2e56-4710-b012-a41c1b20021d> .