Definition: 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.
Input:  Rhubarb pioneer dies : Renowned rhubarb grower David Westwood has died aged 74 . http://t.co/6QknPCXm
Output:
David Westwood