@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ff21ef72-4f01-4181-b077-407d3c9823cb> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ff21ef72-4f01-4181-b077-407d3c9823cb> .