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: Probably one of the best units out there...Keep it charged and stored in your vehicle...If your ever in a situation were your vehicle's battery went dead and your somewhat stranded without assistants...this HALO Bolt Charger saves the day. Would keep one in every vehicle...
Example Output: positive

Example Input: The book is an easy read. The book is full of fabulous thought provoking questions to ask yourself. It is good for building a mindfulness practice...helps with weight loss, healthy eating, finances, relationships, etc. Elizabeth has a great pod cast called Primal Potential...excellent! The book was just what I needed when I needed it. She is encouraging and straight forward all at the same time. I have re-read the book as well.
Example Output: positive

Example Input: Lost one piece of my Boise sport. This order came in fast and with three sizes for each ear I am in great shape. They fit and performed like the originals. Would defiantly buy again - hope I don't need to though...
Example Output:
positive