Instructions: 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.
Input: I started having back issues after bowling at my nephews birthday party. I could barely stand, let alone, walk. I bought this unit and it was delivered the same day. I don't feel 100% better yet but I do feel some relief after only the first use.
Output:
positive