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:
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:
I bought this for my elderly parents who seem to struggle with the use of almost any technology. So far, they have been able to use this in their own with minimal intervention from me (which is greatly appreciated)

Ex Output:
positive


Ex Input:
I got wrong color. I was looking for auburn but my color is almost black. I used this henna. I added tea and lemon to the mixture and hold it for 4 hours. My hair is almost black and not auburn as advertised. My natural color is brown. Not sure if it advertised correctly.

Ex Output:

negative