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:
 Great to be on @1057darwin with Julia Christensen talking health http://t.co/l0Ow46JGF9

Ex Output:
Julia Christensen


Ex Input:
 Space Station underlining the immense beauty of the universe . Thoughtful Drew Buckley photo . https://t.co/vnj4VzaSGC http://t.co/qale3jvrlu

Ex Output:
Drew Buckley


Ex Input:
 Greeting colleague Sarah Teather & the @ shelter team at @ CommunitiesUK to receive petition against revenge eviction http://t.co/c8UNmWwt1d

Ex Output:

Sarah Teather