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.

Example Input: This author amazes me every time I read one of her book, I'm pulled right in with the very first chapter!! Emma and Jax have secrets that neither one them wants to reveal but in the end, they are going to have to suck it up and get over with!!
Example Output: positive

Example Input: The Roomba 980 performs as stated. Excellent pick up and battery life. The WiFi connectivity is handy for as needed cleaning between scheduled times. We are very pleased with the unit.
Example Output: positive

Example Input: Worked ok for less than a year. Then the quality was terrible - volume would go down so low that I couldn't hear, coming up periodically for no particular reason.
Example Output:
negative