. "CH-SO" . . "4523" . "Niederwil was a municipality in the district of Lebern in the canton of Solothurn in Switzerland. In 2011 Niederwil merged into Riedholz."@en . . "Niederwil"@en . . "2.28e+06"^^ . . . . "2552" . . . "545.0"^^ . .