You will be given a definition of a task first, then some input of the task.
In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.

Product stopped working after second use. I brought it for my office and it was great until it just didn't turn on anymore. I didn't contact the seller for return because I threw.away all packaging related to the item. Extremely upset. Shipping was very fast.
Output:
I brought it for my office and it was great until it just didn't turn on anymore