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: I've had my replacement bands for 3 months and one side has already broken. I didn't hit my fit bit on anything and wasn't messing with the band. Pretty upset I have to buy another set of replacements so soon.
Example Output: negative

Example Input: This book will manage you to put resources into your business for making your business more productive. It will guide you the right way to your business and gives your profitable methodology for your business. Fresher will get more viable plans to begin their speculation effectively. I very suggest this book.
Example Output: positive

Example Input: Worked great when it was working, then just stopped working after about 10 uses. Now it’s not reading anything.... Tried to get in touch with seller but emails about exchanging product were unanswered
Example Output:
negative