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: So excited about my touch pro but so not excited about going to work tomorrow.... 

SOLUTION: negative

PROBLEM: @CHALISAVIRAVAN following 

SOLUTION: positive

PROBLEM: @DrNinjaPhD  waste of calories, almost as bad as a waste of money or time!!!

SOLUTION:
negative