Michelle Obama

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A giant panda sleeps on the los as U.S. first lady Michelle Obama, her daughters Sasha, Malia, and her mother Marian Robinson visit the Giant Panda Research Base in Chengdu in southwest China's Sichuan province Wednesday, March 26, 2014. (AP Photo/Andy Wong)

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U.S. first lady Michelle Obama, left, is greeted by Tibetan students as they arrive to a Tibetan restaurant for lunch in Chengdu in southwest China's Sichuan province Wednesday, March 26, 2014. (AP Photo/Andy Wong, Pool)

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U.S. first lady Michelle Obama, left, touches Tibetan prayer wheels as her daughter Malia, right, and Sasha watch outside a Tibetan restaurant in Chengdu, Sichuan province, China Wednesday, March 26, 2014. (AP Photo/Petar Kujundzic, Pool)

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U.S. first lady Michelle Obama, left, and her mother Marian Robinson, right, feed apple to giant pandas during their visit at Giant Panda Research Base in Chengdu, Sichuan province, China Wednesday, March 26, 2014. (AP Photo/Petar Kujundzic, Pool)

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U.S. first lady Michelle Obama, center, receives a Tibetan scarf as she and her daughters Sasha, Malia, and mother Marian Robinson arrive to a Tibetan restaurant for lunch in Chengdu in southwest China's Sichuan province Wednesday, March 26, 2014. (AP Photo/Andy Wong, Pool)