Given the task definition, example input & output, solve the new input case.
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: 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.
Output: negative
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.

New input case for you: This battery is labeled and marketed as though it is a legitimate replacement for the original LG battery. Unfortunately, within about 30 seconds of inserting it into my phone, an error message declaring it an "invalid battery" is displayed and the phone powers down. I looked for solutions to this issue online, and although there are some suggestions, none worked for me. I am not willing to do a hard factory reset simply to see if that might work. I decided to return the battery and the seller will not even pay for shipping for this item. Very disappointing purchase. I won't be ordering from this seller again.
Output:
negative