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: It typically works for a few turns and then nothing comes out after that. I would shake it to try to get peppercorns to feed but that never really helped much. Only emptying it, clearing the neck and reloading it would get it working again for a few more turns. Seems like the neck is too narrow and gets clogged inside. I finally tossed it out because even the disposable McCormick pepper grinder works consistently without all the fuss.
Example Output: negative

Example Input: Easy to use mic for phone/pc/laptop. Great if you just need a small mic and don't want to spend a lot of money. Works well. Comes with velvet carrying bag. *disclaimer: I received this product for free in exchange for my honest and unbiased review*
Example Output: positive

Example Input: It worked for about a week and then the headphones would not work when plugged in, alerts pop up that device is incompatible with iPhone. Seller should not sell product advertised as working with iPhones when it does not.
Example Output:
negative