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: I have a bichon and I thought this would entertain him for at least 15 minutes, but it didn't. He solved it quickly, within 5 minutes and looked at me as if to say, that's all?
Example Output: Negative

Example Input: This is quick, easy and portable, and I think it tastes great! It's my favorite flavor.
Example Output: Positive

Example Input: I love these chips so much... and I can't get over how delicious each variety is!! The price here is AWESOME too!
Example Output:
Positive