Definition: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Input: I got this as a gift for Christmas 2018. We already had a black one exactly like this. When we take both on trips, the black still has ice in it at the end of the day but the blue one only keeps it cold for a couple hours. Not sure why the difference but not very happy with the blue one. Since it was a gift I feel I should use it.

Does not keep y drink cold for more than a couple hours