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'm very disappointed in this key fob that I just purchased it doesn't flip open and I had it programmed in the buttons don't even work on it I bought a new battery for it and it still doesn't work I would like you to send me another one please and I will send this one back thank you.
negative