Instructions: 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.
Input: These lights were great for 3 weeks, and then they just stopped working. The colors were great and vivid. All of a sudden, when we tried to turn them on, they no longer come on. That happened about 3 weeks or so after we put them up.
Output:
negative