NORTH SUMATRA, INDONESIA - JUNE 18: Students read verses of Quran during a Quran recitation class at an Islamic boarding school in Medan, North Sumatra, Indonesia, on June 18, 2015. Muslims around the world are observing Ramadan, the holiest month in Islamic calendar, refraining from eating, drinking, smoking and sex from dawn to dusk. (Photo by Jefri Tarigan /Anadolu Agency/Getty Images)
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