@prefix skos: <http://www.w3.org/2004/02/skos/core#> . <https://stad.gent/id/concept/530010160> skos:prefLabel "polyacrylonitrile (pp)"@nl . <https://stad.gent/id/concept/530010160/2023-03-01T02:45:21.858Z> <http://purl.org/dc/terms/isVersionOf> <https://stad.gent/id/concept/530010160> . <https://stad.gent/id/concept/530010149/2023-03-01T02:44:26.469Z> skos:narrower <https://stad.gent/id/concept/530010160> .