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: Big exam today. Bleh. 
Example Output: negative

Example Input: I feel like a right tourist snapping away, here's towerbridge!!!  [Link]
Example Output: positive

Example Input: My tummy's full. Going back to the hotel to explore   -AMBROS!ALYNN!!!
Example Output:
positive