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: I've always bought this brand. It has been tried and proven for more than 3 years. My partner phone was stuck between some sharpe metal and it pierced the face of the phone after retrieving the screen protector had a hole but it did not touch the phone glass. Best case ever.
Example Output: positive

Example Input: I thought surely the other reviews saying the product cut their baby were an exception. But bo, this product is defective and cut my baby and caused him to bleed. They shouldn't be allowed to sell these. Save yourself and your baby and just buy the windi.
Example Output: negative

Example Input: The package arrived when expected, the density is perfect for the project I am working on. As for rating the durability, it is too soon to rate, considering it is new and has not been used. All in all, I am satisfied with my purchase.
Example Output:
positive