@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/509f15c7-b3d4-469d-988c-62a52e936431> rdfs:isDefinedBy <https://stad.gent/data/blank_node/509f15c7-b3d4-469d-988c-62a52e936431> .