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: These are junk! Both bulbs have burned out within a two month period!! I cannot believe that this company can be in business with such poor quality. I have used infrared lights for my ball python for many years now and I get a varied range of months from a bulb, but I have never gone through two bulbs in a matter of two months! I am very disappointed.
Example output: negative
Example explanation: The user seems very disappointed in the product. Because the bulb they ordered has been burned out earlier than usual. So, it's a negative review.
Q: I know it's tough, but do spend $20+ more on a better battery that will charge; hunt eBay if need be. Don't waste your time with trying to use that stupid warranty, by that time you have paid to ship it to them, most likely, and they sent it back, you won't be able to send it back to Amazon.
A:
negative