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: the weekends almost over...back to Montgomery 

SOLUTION: negative

PROBLEM: New picture is up on flickr!  Fun shot today 

SOLUTION: positive

PROBLEM: How come whenever I hang the washing out it empties down?! There's 2 very sad looking guniea pigs in my back garden 

SOLUTION:
negative