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.

Perfect as a personal item. NOT considered a carry on and you won't be charged for it! Wonderful when flying certain carriers that charge for everything!
positive

The book came even with the stink of the previous owner, dirty, the opposite the spine of the book white pages were so dirty it look like the previous owner never wash their hands. The spine were cut with a knife
negative

I bought one like this for my stepdaughter. She liked it so much as it helped her with her back pain I decided to get one for myself. I am very impressed with this. I am walking tall and not slouching. My back feels good. Thank you for such a great product.
positive