@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81a7d7da-4cf8-46a6-83ac-d147e654be39> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81a7d7da-4cf8-46a6-83ac-d147e654be39> .