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.

Ex Input:
with angus and libby  just had mexican..YUM!!  i want chocolate-in m&amp;m form    &lt;/3 ________x

Ex Output:
positive


Ex Input:
Aww my elbow hurts and I don't know why. 

Ex Output:
negative


Ex Input:
updated to #songbird 1.2... caused almost all add-ons to be upgraded. that took longer then main songbird download and install... 

Ex Output:

negative