@prefix skos: <http://www.w3.org/2004/02/skos/core#> . <https://stad.gent/id/concept/550008794/2023-03-01T08:26:21.204Z> skos:narrower <https://stad.gent/id/concept/550008812> . <https://stad.gent/id/concept/550008812> skos:prefLabel "nikkel en nikkellegering"@nl . <https://stad.gent/id/concept/550003297/2023-05-13T00:02:20.145Z> skos:broader <https://stad.gent/id/concept/550008812> .