In this task, you are given a text from tweets. Your task is to classify given tweet text into two categories: 1) positive, and 2) negative based on its content.

[EX Q]: @tommcfly have a great time in rio 
[EX A]: positive

[EX Q]: @JDG333 I did give up for a while...but I'm back. 
[EX A]: positive

[EX Q]: please welcome brenda at twitterwold.. follow her @lil_venice.. 
[EX A]:
positive