| http://www.w3.org/ns/prov#value | - cracy activists gathered for more than two weeks in an uprising that sent shockwaves around the world.The revolt against Mubarak's rule was notable for the central role played by social networking sites, including Facebook and Twitter, to mobilize crowds to take to the streets.US President Barack Obama has hailed the toppling of the strongman as a defining moment in world history, and added that T
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