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.

I bought two of these alarm clocks for my sons' bedrooms. Like other reviews, these clocks do not keep accurate time in either room. The only purpose they serve at this point is to charge their cell phones overnight. This product is a waste of money and I highly discourage consumers to purchase it.
negative

I absolutely like it The brain booster influences well on my alertness and memory. I feel much more clear after half an hour of taking them. I think that they even improve my critical thinking.
positive

Speaker does not stay on! It's awful!!! Directed to Amazon customer service in the Philippines. Worst speaker and awful customer service from Amazon!!!
negative