@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/509639d4-ff14-43d3-a813-155ccc2572bb> rdfs:isDefinedBy <https://stad.gent/data/blank_node/509639d4-ff14-43d3-a813-155ccc2572bb> .