@prefix skos: <http://www.w3.org/2004/02/skos/core#> . <https://stad.gent/id/concept/530010158> skos:prefLabel "polytetrafluoroethylene (pp)"@nl . <https://stad.gent/id/concept/530010157/2023-03-01T02:45:06.478Z> skos:narrower <https://stad.gent/id/concept/530010158> . <https://stad.gent/id/concept/530010158/2023-03-01T02:45:11.479Z> <http://purl.org/dc/terms/isVersionOf> <https://stad.gent/id/concept/530010158> .