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.

Example Input: It's a really pretty cover and the fact that they showed what each color phone looked like under the design really helped me choose the perfect cover. It's textured on back, so it helps grip the phone and I'm very pleased with it.
Example Output: positive

Example Input: 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!
Example Output: positive

Example Input: I wanted to like this item but when I received it looked fine,then when I went to iron it for a wedding (the reason I bought it) I found that it had a runner or blemish in the material right down the middle.By then it was too late to return for another.
Example Output:
negative