@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81cfa604-693f-480e-9506-18ec607b51a2> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81cfa604-693f-480e-9506-18ec607b51a2> .