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: If you already have the DeWalt batteries his is a great addition. This fan is so convenient to use that I end up using it all the time. It moves an impressive amount of air while at the same time is quiet. A 6Ah battery runs for over 10 hours on high.
Example Output: positive

Example Input: I have been searching for a xbox one controller charger for a while. This charging station is perfect for my boys! Super excited that I do not have to constantly go buy batteries.
Example Output: positive

Example Input: My brother has a fetish with sex toys, but he's embarrassed to get them on his own, so I help him out by ordering and receiving it. He said to let people know that this product was very nice and with the usb heating tool, it feels so close to the real thing and it's so easy to use!
Example Output:
positive