@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/b81c41cf-21a0-47cf-9a34-d833e594c8f7> rdfs:isDefinedBy <https://stad.gent/data/blank_node/b81c41cf-21a0-47cf-9a34-d833e594c8f7> .