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(191007) -- DOHA, Oct. 7, 2019 (Xinhua) -- Silver medalist, Kendra Harrison of the United States, gold medalist, Nia Ali of the United States, and bronze medalist, Danielle Williams of Jamaica (from L to R), pose for photos during the awarding ceremony of women's 100m hurdles at the 2019 IAAF World Athletics Championships in Doha, Qatar, Oct. 6, 2019. (Xinhua/Wang Lili)