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.

Ex Input:
So disappointed in this product. It was not as pictured. The picture shows a more square bag. The one I received was more slouchy. I purchased it to use for work for a laptop. Theres no way it would fit. I ended up donating this bag.

Ex Output:
negative

Ex Input:
Works great! I have two other similar products and this is by far the most powerful. Especially for the price! Shipping was quick and easy without issue.

Ex Output:
positive

Ex Input:
Our dog Radar has put so many holes in his Jolly Ball we can't count them. The ball is amazing. It holds its shape even though he compresses it when he bites down and carries it around. Definitely one of the best toy buys we've made.

Ex Output:
positive