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: This is the most unique diffuser I have ever seen. The colors are very brilliant and overall it is calming and energizing at the same time. The diffuser is very easy to operate and has an impressive output. The larger glass pieces have a mirror effect which makes the diffuser beautiful even when it is turned off.
Output:
positive