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You sing, 'Happy Birthday!'~
$n sings, 'Happy Birthday!'~
You sing, 'Happy Birthday!' to $N.~
$n sings, 'Happy Birthday!' to $N.~
$n sings, 'Happy Birthday!' to you.~
Who?~
You sing, 'Happy Birthday!' to yourself.~
$n sings, 'Happy Birthday!' to $mself.~
