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.

i think my mac is coming to the end of its life 
negative

Had a lovely time having big adventures in Sydney, shame I'm back at work 
negative

I feel so left out not having an iphone.  There's no such thing as a 3.0 update for a HTC ToUCHpro 

negative