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: Unlike other reviews I read before buying , my locks came sealed and with matching codes , nothing really special about the locks besides being reliable and sturdy locks good for use at a gym .
Example Output: positive

Example Input: Order came on time, but the threads on the shower outlet were bad. Had to get a master plumber to fix a less than 10.00 dollar item. A lot of work was done to the bathtub to get to the tub spout. The shower head could not be used nor the tub spout to fill the tub. I expect a full return from Amazon.
Example Output: negative

Example Input: Really great. I thought they were gonna be smaller. It says for small dogs but for me it looks like the size is of a medium. I’m not complaining. My dogs love it.
Example Output:
positive