Definition: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Input: I hate giving something a 1-star, but I want to warn other folks not to buy! I actually have quite a few other contigo's, so I was pumped to see the stainless steel and thought there would be no issue. I ended up buying 4 and by the time I realized how bad they were I missed the return window. When you suck on straw, air gets in. Neither of my girls will use them. I am bummed because they are expensive!

Defective: Straw doesn't suck water properly. Air gets in as you drink.