Given the task definition and input, reply with output. 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.

I bought 2 of these awhile ago when I upgraded my son out of crib. Now that hes potty training, I get to find out how useless these sheets are. Pee soaks into the mattress. These sheets dont work at all.
negative