You will be given a definition of a task first, then some input of the task.
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.

Wonderful to sleep on. Was considering getting a new mattress and I'm not anymore. I have a memory foam top layer on my mattress that I felt wasn't supporting me by the morning. My new topper firms it up while remaining soft and comfortable. Also just moved to CA, and I don't think it's hotter to sleep on than my regular mattress at all. If anything it actually cools me down a bit.
Output:
positive