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"Google today released a new Chrome experiment called Spell Up, a word game designed to help improve your grasp of the English language using only your voice. You can try out what the ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/google/2014/05/13/new-google-chrome-experiment-spell-word-game-helps-improve-english-using-voice/>