@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/51d6b685-efc4-495b-b8d4-ef37293035bc> rdfs:isDefinedBy <https://stad.gent/data/blank_node/51d6b685-efc4-495b-b8d4-ef37293035bc> .