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: Worst battery case I've ever bought, and I buy them for every iPhone I've owned since 6. The top of the case fell off after 3 days. So for a few months I had the case without the top of the battery. I dropped my phone and cracked the top left corner due to not having the top protecting it (with the screen protector on it as well) I would highly recommend getting any other case specifically rubber as the magnets don't hold the top well.
A:
negative