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: Just left the AT&amp;T store. It is going to be 11 weeks before I can upgrade. Aparently the 3g guys get a break not the original owners. 

SOLUTION: negative

PROBLEM: @ElkaBr My day was ok,little boring but ok.Yeah,twitter had some problems the last days.It sucks!Ops 

SOLUTION: positive

PROBLEM: #Primeval won't return for a 4th season! DNW! 

SOLUTION:
negative