Definition: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Input: Changing review rating. All of sudden just stopped working. Purchased in December 2017. It’s only April 5, 2018 now. For the price I paid, it should have lasted. I don’t even know how to contact seller. The window for return came and went.

Changing review rating. All of sudden just stopped working ...