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 _____      _____    __   _      ___     __   _   
|  __ \\   |  ___|| | || | ||   / _ \\  | || | || 
| |  \ ||  | ||__   | '--' ||  / //\ \\ | '--' || 
| |__/ ||  | ||__   | .--. || |  ___  ||| .--. || 
|_____//   |_____|| |_|| |_|| |_||  |_|||_|| |_|| 
 -----`    `-----`  `-`  `-`  `-`   `-` `-`  `-`

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發送短信 : Generating semantically similar permutations of questions by clustering