@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . <https://stad.gent/id/blank_node/81ab7d87-828e-4d78-b44b-4f907cc62bf7> rdfs:isDefinedBy <https://stad.gent/data/blank_node/81ab7d87-828e-4d78-b44b-4f907cc62bf7> .