Given the task definition and input, reply with output. 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.

 DISGRACE : An Atalanta fan not only threw a banana at AC Milan 's Kevin Constant … but also a knife ! ! http://t.co/KXogzwQNu1

Kevin Constant