@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81c980bd-b0fb-491e-9e68-4fef01a1288a> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81c980bd-b0fb-491e-9e68-4fef01a1288a> .