@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/57b31d3e-d255-4931-8634-5f5789aa2c29> rdfs:isDefinedBy <https://stad.gent/data/blank_node/57b31d3e-d255-4931-8634-5f5789aa2c29> .