TASK 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.
PROBLEM:  Statement by Prime Minister of Malaysia , Dato ' Seri Najib Razak on #MH17 Incident http://t.co/fqjkS5xIbX

SOLUTION: Najib Razak

PROBLEM:  Thanks Sister Margaret and Maronite College of the Holy Family . Great to present a flag for your #ANZAC service . http://t.co/dWRDrC5V8D

SOLUTION: Sister Margaret

PROBLEM:  . @ Astro_DavidS @ CommanderMLA I did a Google Image search , found it 's an AP photo by Dmitry Lovetsky . http://t.co/AQWT8xocEC Hi from Calgary !

SOLUTION:
Dmitry Lovetsky