TASK DEFINITION: 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.
PROBLEM: think i have swine flu 

SOLUTION: negative

PROBLEM: At work... Missing my routine cup of joe 

SOLUTION: negative

PROBLEM: wish my best friend was still out in San Diego with me...2 more weeks 

SOLUTION:
positive