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 been having knee pain for the past few months so I decided to try this support brace. I can’t believe how much support it does provide and my knee pain has gone down significantly. It’s slim so you can wear it under pants while at work but also looks fine with shorts. So glad I found this and it is helping with my knee pain!
Example Output: positive

Example Input: At first the fan was great, very quiet. we have had it for just over a year now. recently two of the three fans quit working. we dont use it much so we were surprised to see it acting up. We also never received a remote control as advertised
Example Output: negative

Example Input: The advertising never mentions that it is only compatible with Windows. Chat with support confirms that fact. So, I had to go through all this grief because of Autel!! If you have a windows system (must be the only system in the world) you might be OK.
Example Output:
negative