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:
Yaya Toure confirms that he 's fully fit for City 's final two encounters despite his withdrawal at Everton http://t.co/mzJOPnjyao

Ex Output:
Yaya Toure

Ex Input:
RT HachyHflava : RT ckpthamayor : After reading about Rihanna 's thug life tattoo , I think we all owe Chris Brown an apology . & lt ; Loooool

Ex Output:
Chris Brown

Ex Input:
" Manufacturing is adding jobs for the first time since the '90s . " President Obama #OpportunityForAll

Ex Output:
President Obama