You will be given a definition of a task first, then some input of the task.
Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.

The Macally PS-AC4 Power Adapter would not charge my PowerBook. I tested it with a multimeter, and found that it had an open lead. I contacted Amazon (even better, through their web site - no waiting on the phone or waiting for an email), and they shipped another. This second one had the same problem as the first. I contacted Amazon again for a refund. The product was junk, but the service was excellent!
Output:
Negative Review