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Simonetta Sommaruga, President of the Swiss Confederation, right, Nana Addo Dankwa Akufo-Addo, President of the Republic of Ghana, second-right, Jonathan Gimmel, President of the Museum of Arts, Bern, second-left, and Kathleen Buehler, Kurator and Head of Contemporary Art at the Museum of Arts, Bern, left, watch a piece of Art during a visit of the Exhibition hanging of « El Anatsui: Triumphant Scale » at the Museum of Arts in Bern, Switzerland, Saturday, February 29, 2020. Nana Addo Dankwa Akufo-Addo attends a two-day official visit in Switzerland. (KEYSTONE/Anthony Anex)