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Transformer station next to the operations center of the Swiss Federal Railway in Poleggio in the Leventina valley in the canton of Ticino, Switzerland, on June 15, 2016. (KEYSTONE/Christian Beutler) Trafostation neben dem SBB-Stellwerk Poleggio in der Leventina im Kanton Tessin am 15. Juni 2016. (KEYSTONE/Christian Beutler)