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 have been buying these candies for years and years, and now it is so convenient to buy them online. Great flavors. Love that the cinnamon has a "little burn" to it.
Example Output: positive

Example Input: Super disappointed that i ordered and never receive this product, had to end up canceling because it took over 3 weeks to even be shipped. Wont buy again from this vendor.
Example Output: negative

Example Input: These worked great thru my pregnancy. Like others have said, if you follow the directions and trim them at an angle, they work great. I used the same one thru my whole pregnancy, it never came lose or fell apart.
Example Output:
positive