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: @emglyph Check out my new promotion.  Amazing what you can do with Photoshop   [Link]

SOLUTION: positive

PROBLEM: going to bed now! i havent read in a while. i better start again its a good time 

SOLUTION:
positive