@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81577f72-b2e2-44aa-84b2-ccf4960e0043> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81577f72-b2e2-44aa-84b2-ccf4960e0043> .