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: As a reward, you may download a free copy of EmailUnlimited on [Link] 
Example Output: positive

Example Input: @TickleMeJoey loved ur hair in the live chat last night 
Example Output: positive

Example Input: @gonetoearth lol I'll be buzzing on the caffeine! ........ sounds good ;) will do 
Example Output:
positive