@prefix skos: <http://www.w3.org/2004/02/skos/core#> . <https://stad.gent/id/concept/530003039> skos:prefLabel "polymethylmethacrylaat"@nl . <https://stad.gent/id/concept/530001884/2023-01-06T23:06:40.478Z> skos:narrower <https://stad.gent/id/concept/530003039> . <https://stad.gent/id/concept/530003039/2023-01-06T23:32:52.208Z> <http://purl.org/dc/terms/isVersionOf> <https://stad.gent/id/concept/530003039> .