@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/data-processing/activities/50e53af1-37e4-e911-80e7-005056935251> rdfs:isDefinedBy <https://stad.gent/data/data-processing/activities/50e53af1-37e4-e911-80e7-005056935251> .