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: Cute little fountain. My bird bath is entirely in the shade and it squirts up 8". If you put it in your bird bath, it will empty it in 30 minutes. Great entertainment.
Example Output: positive

Example Input: WOW...A must for any Chess player. Quality in every way. Buy it for yourself, buy it for a chess player in your family. A chess tournament in a portable case. Look, at the others, read the reviews, then buy the real deal...!!!
Example Output: positive

Example Input: This item was great ... for three months, and then wouldn't work anymore. I'm trying to contact customer support, but cannot find their information. Does anyone know who to contact? It seems that a product like this should last more than three months.
Example Output:
negative