@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81ca1f49-b749-46c6-b268-16ef166340ba> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81ca1f49-b749-46c6-b268-16ef166340ba> .