@prefix skos: <http://www.w3.org/2004/02/skos/core#> . <https://stad.gent/id/concept/550007574> skos:prefLabel "polystyreen"@nl . <https://stad.gent/id/concept/550007574/2023-03-01T07:14:04.710Z> <http://purl.org/dc/terms/isVersionOf> <https://stad.gent/id/concept/550007574> . <https://stad.gent/id/concept/550008815/2023-12-22T00:01:12.899Z> skos:narrower <https://stad.gent/id/concept/550007574> .