@prefix owl: <http://www.w3.org/2002/07/owl#> . <https://stad.gent/id/concept/540020073/2023-04-21T00:14:44.347Z> owl:sameAs <https://www.mindat.org/loc-4430.html/4430> . <https://stad.gent/id/concept/540020071/2023-09-21T00:10:22.318Z> owl:sameAs <https://www.mindat.org/loc-4430.html/4430> .