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: @matt_hero That's a shame 
Example Output: negative

Example Input: sam and dean go back to schooll. 
Example Output: positive

Example Input: 12 degrees (55 for some). Watching buckets fill in real time. (Meme shamelessly pilfered - thanks, Alex). 
Example Output:
negative