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 used them one time and pulled them out of my phone and wire went everywhere and now they do not work. Biggest waste of money and would cost me more to send back.
Example Output: negative

Example Input: I never write reviews but look at them for everything. This unit works perfect with SONOS and being able to run Apple TV, Fire Stick, or Cable to a 4K projector that does not have optical input. Took me awhile to find the right switch and this one does the trick. Full 5 channel surround and I confirmed my projector is running 4K.
Example Output: positive

Example Input: I will not purchase this product again. Dogs (Yorkshire, Shih-Tzu) will only eat the outer coating and leave the inner portion laying on the floor. The inner appears to be similar to the plain rawhide chews. I your four legged friend doesn't mind those chews then this might be a good purchase for you. As for our dogs we will have to go with something more tasteful.
Example Output:
negative