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 Q]:  In his Q & A , Treasury sec Martin Parkinson said it was unrealistic to expect some people to work until 70 http://t.co/AAe9TxoraQ #auspol
[EX A]: Martin Parkinson

[EX Q]:  Under David Cameron house building is at its lowest peacetime level since 1920 's . Labour would have 200 , 000 houses built each year by 2020 .
[EX A]: David Cameron

[EX Q]:  #GoodTimes at @ amnesia_ibiza . Marco Carola is such a #Legend 🙌  #BOSS 🎶  😝  🎶  @ Amnesia - Ibiza http://t.co/XUyny42C9O
[EX A]:
Marco Carola