@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/57686347-c43e-423f-a9fb-015f04baca12> rdfs:isDefinedBy <https://stad.gent/data/blank_node/57686347-c43e-423f-a9fb-015f04baca12> .