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: Never received item !!! Add-on item missing from delivered package and not discovered after allotted notification time had expired so no recourse as far as a refund. Shop with Amazon almost exclusively and dissappointed to say the least.
Example Output: negative

Example Input: I got this product for my one year old for her birthday and this buggy is not worth what i paid for it. It is very flimsy and constantly falls apart while she’s pushing it
Example Output: negative

Example Input: 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.
Example Output:
positive