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.

Salt & vinegar chips are my favorite flavor so I think I've tried every brand out there. These are by far the best. I also like them because the sodium content is not very high like some of the others and they are not excessively greasy. They seem to have the right balance of the salt and vinegar taste.
Output:
Positive