@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81b909d3-9c66-47f3-9499-07fb5c285ddc> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81b909d3-9c66-47f3-9499-07fb5c285ddc> .