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.

Ex Input:
Not sure why this product never came. I just got an email stating my money would be refunded and it was too late to order something else that looked like this. I was really bummed

Ex Output:
negative

Ex Input:
I'm very disappointed with this purchase. 2 of 3 pack doesn't work. First cable does not charge at all with an error message saying "This accessory may not be supported" within a few seconds. The second charger appears to be charging but then just randomly stops charging.

Ex Output:
negative

Ex Input:
This battery is labeled and marketed as though it is a legitimate replacement for the original LG battery. Unfortunately, within about 30 seconds of inserting it into my phone, an error message declaring it an "invalid battery" is displayed and the phone powers down. I looked for solutions to this issue online, and although there are some suggestions, none worked for me. I am not willing to do a hard factory reset simply to see if that might work. I decided to return the battery and the seller will not even pay for shipping for this item. Very disappointing purchase. I won't be ordering from this seller again.

Ex Output:
negative