People hold a giant banner reading 'Turkish youth wants Presidency System' during a rally to mark the 563rd anniversary of the conquest of Istanbul by Ottoman Turks on May 29, 2016 in Istanbul. / AFP / OZAN
{"Image ImageDescription": "People hold a giant banner reading \"Turkish youth wants Presidency System\" during a rally to mark the 563rd anniversary of the conquest of Istanbul by Ottoman Turks on May 29, 2016 in Istanbul.  / AFP / OZAN KOSE        (Photo credit should read OZAN KOSE/AFP via Getty Images)"}