You will be given a definition of a task first, then some input of the 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.

I have been suffering from post nasal drip and congestion for so many years, and this tea made such a big difference after a couple of days. I drink it 1-2 times per day and I feel so much better. I can breathe easier, and have little or no post nasal drip throughout the day.
Output:
Positive