问题描述：
White,David,CLinton,Green．．．．．．．．
White,David,CLinton,Green,Tom,Grace,Brown,Julia,Sarah,Bill,Eric,Frank,Harry,Jim,Bush,Laura,Potter,Daisy,Hand.这些归类．
分First name!和 Last name!
．．．．．．． ．．． ．．．．．．
．．．．．．． ．．．．．．．．．． ．．．．．．． ．．．．．．．．．
．．．．．．．．． ．．．．．．．．．
．．．．．．．．．．． ．．．．．．．．．．．．
White,David,CLinton,Green,Tom,Grace,Brown,Julia,Sarah,Bill,Eric,Frank,Harry,Jim,Bush,Laura,Potter,Daisy,Hand.这些归类．
分First name!和 Last name!
．．．．．．． ．．． ．．．．．．
．．．．．．． ．．．．．．．．．． ．．．．．．． ．．．．．．．．．
．．．．．．．．． ．．．．．．．．．
．．．．．．．．．．． ．．．．．．．．．．．．
问题解答：
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