Given the task definition and input, reply with output. 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.

Mr. David provides a fair amount of background on the field of data science and follows it up with a comprehensive and practical framework to get any business started down the path of leveraging machine intelligence. The case studies at the end are very helpful in cementing the book's concepts.
positive