In this task, you will be given sentences in which your task is to recognize the name of a person. Note that Twitter names shouldn't be considered as people's names. Although there might be several correct answers, you need to write one of them.

Ex Input:
Blue volcanic glow from lava-licking flames of sulphur gas . Dusk photo by Olivier Grunewald http://t.co/8vKBBVwkn1 http://t.co/4KtjoUsl5l

Ex Output:
Olivier Grunewald

Ex Input:
Felix Magath insists he is ' disappointed and surprised ' to have been sacked as Fulham boss http://t.co/HcK9LWI7LT http://t.co/velw6EGmfG

Ex Output:
Felix Magath

Ex Input:
John Banks ( Final Installment ) discusses relationship between co-creation , co-option , and resistance http://t.co/VSVIM2xRBz

Ex Output:
John Banks