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: 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!!
Example Output: positive

Example Input: Would definitely not recommend!!! Although the actual material that the bag is made of seems to be of good quality, the zippers are cheaply made. The zippers on my bag just won't stay closed. It has split open numerous times, spilling all of its contents. Imagine the frustration having to pick everything up with 1 hand as you hold an infant with the other arm.
Example Output: negative

Example Input: This tire inflator is so compact and easy to carry! When I received it I couldn't wait to use it. It's so easy to use I didn't even have to read the instructions, and inflates so fast I was so happy!!!!!!! I had a larger, heavier, bulkier inflator that took so long to inflate I hated it. If this continues to work with no problem, I will be so happy!!!!!!!! HIGHLY RECOMMEND IT!!!!
Example Output:
positive