In this task, You are given a review of Amazon's food products. Your task is to divide them into two classes: negative or positive, depending on the content of the review.
Q: This is the second unit I tried and both failed to charge. The first never took a charge and I returned it and decided that I must have got a bad unit and tried again. Don't waste your money on any these as they are all pretty much the same thing with a different sticker. All cheap junk.
A:
negative