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.

Example Input: @jordanknight I know 
Example Output: negative

Example Input: @theteganandsara I always knew you had good taste 
Example Output: positive

Example Input: @bbgeekchic  I have not been a happy camper today.... BlackBerry has been, well, disabled whilst I get it back in order 
Example Output:
negative