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: Just used this on a 700 mile trip everything was going good. If I saved a clip I could pull it up on memory no problem. Night time came and noticed it didn't switch to night mode on its own you have to manually do it in the settings, no big deal. Problem is there's a finger smudge on the inside of my lens that only shows up at night. Then I get home plug the camera in to my laptop and no files? Take the sd card out and put in to my card reader and nothing. I will get a replacement and update my review..
Example Output: negative

Example Input: I’ve been using this product for a few years , and never had an issue, it works great with their razors. The scent is just right and lubes the beard just right so the blades razors slides without any issues. And the best part about the container it doesn’t leave a rust ring on the showers tile
Example Output: positive

Example Input: This book is horrible and these reviews must be fake. There is literally 1.5 pages of actual speed reading instruction. The rest is tangential information that will not help you speed read at all. There are tons of grammatical and spelling mistakes. If you don’t believe me, waste your money and find out for yourself. This book should not be allowed to be sold on Amazon. Actually, it is inspiring to know that if this Hack of an author can publish this trash and make money, anyone can.
Example Output:
negative