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.

Example Input: The taste is not real great and the protein level is really low.  I definitely prefer Amazing Grass Green Superfood Chocolate to this product.
Example Output: Negative

Example Input: This is my husband's new favorite tea! I'm not huge on hibiscus but this does taste good. I'm sure we'll be buying more.
Example Output: Positive

Example Input: I've always wanted to like coconut water - low in calories, high in minerals - but I've just never liked the taste much. The pineapple juice in this really makes a difference. It still needs to be well chilled to be good, but it makes a healthy post-workout drink.
Example Output:
Positive