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TOP (L/R): U.N. World Tourism Organization chairwoman Dho Young Shim, Unilever CEO Paul Polman, Gbowee Peace Foundation Director Leymah Gbowee, The Voice of Libyan Women Alaa Murabit, Earth Institute at Columbia Universary Director Jeffrey Sachs, Grameen Bank founder Muhammad Yunus. FRONT (2L/R): Director General of WHO Tedros Adhamon Ghebrey, U.N. Deputy Secretary General Amina Mohammed , Queen Mathilde of Belgium, President of Ghana Nana Akufo Addo, Prime Minister of Norway Erna Solberg, EU Commissioner in charge of International Cooperation and Development Neven Mimica pose for a group photograph during a royal lunch for the participants of the 'European Development Days' at the royal castle in Brussels on June 7, 2017. / AFP PHOTO / BELGA / THIERRY ROGE / Belgium OUT (Photo credit should read THIERRY ROGE/AFP/Getty Images)

TOP (L/R): U.N. World Tourism Organization chairwoman Dho Young Shim, Unilever CEO Paul Polman, Gbowee Peace Foundation Director Leymah Gbowee, The Voice of Libyan Women Alaa Murabit, Earth Institute at Columbia Universary Director Jeffrey Sachs, Grameen Bank founder Muhammad Yunus. FRONT (2L/R): Director General of WHO Tedros Adhamon Ghebrey, U.N. Deputy Secretary General Amina Mohammed , Queen Mathilde of Belgium, President of Ghana Nana Akufo Addo, Prime Minister of Norway Erna Solberg, EU Commissioner in charge of International Cooperation and Development Neven Mimica pose for a group photograph during a royal lunch for the participants of the 'European Development Days' at the royal castle in Brussels on June 7, 2017. / AFP PHOTO / BELGA / THIERRY ROGE / Belgium OUT        (Photo credit should read THIERRY ROGE/AFP/Getty Images)