@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/ac1615c8-cd0c-45de-ac30-74b04ce34140> rdfs:isDefinedBy <https://stad.gent/data/blank_node/ac1615c8-cd0c-45de-ac30-74b04ce34140> .