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 purchased San Francisco Bay coffee before. I have always found that the quality of their coffee is excellent. The beans are always well chosen and slow roasted. A very high quality coffee at a reasonable price.
Output:
Positive