@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81f49d97-1a69-450f-933e-a175086e23ad> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81f49d97-1a69-450f-933e-a175086e23ad> .