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.

 Sam Judd is asking the right questions on environment & economy : http://t.co/CUS2auaiib
Sam Judd

 . @ Arsenal almost signed Cristiano Ronaldo and it hurts that he joined #MUFC, admits Wenger http://t.co/bgxsjeCODm http://t.co/6BWGTLHoYN
Cristiano Ronaldo

 Great to see Rob “ @ DanMISSIONBEAT : Just finished Missionbeat patrol with new Min for Homelessness Rob McClelland http://t.co/6bUAqiMM ”

Rob McClelland