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: Monday Monday Monday  

SOLUTION: negative

PROBLEM: Again I know some really, really cool news. Good things are happening on the Swedish startup scene. ... but... Noooo, I can't tell you. 

SOLUTION: negative

PROBLEM: @eclecticechoes Thanks 

SOLUTION:
positive