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: Bummed that the people I feel closest to in the world live the furthest from me. I want to move back to the States 

SOLUTION: negative

PROBLEM: Watching The Iron Giant with my dad and my brother 

SOLUTION: positive

PROBLEM: Dear Weather - Whomever is in charge of complaints should note my extreme displeasure at the COLD during my vacation. I do not approve. 

SOLUTION:
negative