A woman holds the Greek, left, and the Syriza left party flags at Syntagma square in front of the parliament in central Athens, on Saturday, July 4, 2015. Whether Greeks decide in Sunday's referendum to accept their lenders' bailout deal or reject it, the government's hold on power may be shakier than its brash prime minister has calculated, analysts say. (AP Photo/Petros Karadjias)
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