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]: taking my roomie to the airport   so sad
[EX A]: negative

[EX Q]: Safari &amp; WebKit keeps crashing for no reason after a while. Switching to Firefox 
[EX A]: negative

[EX Q]: The ATL airport is probably one of the best for people watching. 
[EX A]:
positive