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: flexible microwave lids in graduated sizes that fit inside one another through the central button handle - work well, excellent price. Anticipate they will be durable.
Example Output: positive

Example Input: I paid extra to get one day shipping and it says it was delivered and "handed directly to a resident" yet I HAVE NOT RECEIVED ANYTHING. I want my money back!
Example Output:
negative