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: Been a long time since a book has held me so captivated & enthralled. Deep, exciting, moving & Inspiring, Mitchell's command of the English language is unparalleled. Never wanted this book to end.
Example Output: positive

Example Input: Useless, basically its like a kazoo for your nose, does not alleviate snoring at all, if anything it made by nose feel sore the morning after, and is easily clogged if you have sinus issues.
Example Output: negative

Example Input: Really love these headphones! They are kind of large over my ears but the amount of noise they block out is AMAZING! I can listen to my music/videos/tv shows in peace, finally! I have tried many many pairs of headphones over the years and you can't beat these, especially for the price!
Example Output:
positive