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.

Ex Input:
Really does a good job of pulling the dialogue out on the tv shows. Over all sound is great. Lots of available adjustments which I really like. I added a woofer and it works great with the sound bar. We are very happy with the purchase.

Ex Output:
positive

Ex Input:
When the ache/pain in my upper back won't stop, I always turn to this product. It takes away the pain almost immediately. It is adjustable and comfortable to wear. I love it!!

Ex Output:
positive

Ex Input:
Holds a lot of pencils. The pockets are kind of small, and some pencils almost don't fit lengthwise. Can be frustrating if you have a long pencil that is sharp and has an eraser on it - have to be careful to not break the tip in the closing of the box.

Ex Output:
positive