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: First time I plugged it in and ran water in it to clean it, then I came back four hours later I noticed a electrical burning smell. This coffee pot does not shut off by itself. Don't need another fire from a coffee pot.
Example Output: negative

Example Input: Good quality and not difficult to install. The instructions state to trim close as possible to the graphic as possible. If you don't their are certain places that will cause a problem. IE: around the door licks and mirror
Example Output: positive

Example Input: Do not buy. Should have trusted the other reviewers- this straightener stopped working after less than 3 months of normal use. No way to receive refund or return.
Example Output:
negative