@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81cfac43-39dd-4cc9-889e-a584be85e349> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81cfac43-39dd-4cc9-889e-a584be85e349> .