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: i knew going out last night was a bad idea. i've had the worst hangover all day and got fuck all revision done 
Example Output: negative

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

Example Input: @Sharoncarr1974 the main thing, so fingers crossed, then on2the next hurdle  hows u &amp; the boys? x
Example Output:
negative