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: Have not twittered in 15 days!? GOO'NIGHT.. 
Example Output: negative

Example Input: @lorenwest Well...uh...no ... thank YOU for the service 
Example Output: positive

Example Input: @thomhoglen Yeah! Wasn't expecting that guitar solo! I need me some of that in my stuff.  Email me the mp3? MySpace = terrible streaming.
Example Output:
positive