Definition: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Input: I had the original Apple charger that came with my Powerbook G4. It lasted me about a year and a half. I opted for this Macally charger, for two reasons, 1. the price 2. the great reviews on Amazon. I have had the charger for less the 6 months and it is already non-functional. Yes it is cheaper than the Apple charger, but it really comes out to the same price, considering that an apple charger costs about $90 and lasts 1 1/2 years and the Macally costs $30 and lasts six months.
Output:
Negative