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.

Very impressed! Was nervous but it looks way more expensive then it really is. The engraving were perfec. It's an awesome knife, my boyfriend loves it! Fast shipping too!
positive

Suppose modern technology were the figment. Suppose you were writing a technology-fiction book about teenagers attending an Institute of Technology. Would the classes be "History of Technology", "How to Use Technology", and "Get in Touch With Your Inner Technologist"? Would fights between students take the form of teens using technology on each other? Would the students self-identify as members of Electricity clans or Chemistry clans? Seems threadbare, but you cold still write a book worth reading if you gave it a real plot and interesting characters. This book is the fantasy equivalent. It has the tired recycled tropes ("I'm a Witch, and I'm going to show off by casting a glowing light!") without the story that would redeem them.
negative

This works like a charm. I’m used to Bose quality sound and this is the best for the car. Hopefully it will not get damaged with the heat inside of the car.

positive