In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.

[Q]: This smelled like toxic chemicals
[A]: Awful material. Chemical smell from the imitation leather

[Q]: My son installed the faucet and it is working O.K. However, it is very difficult to install and it did not come with a tool like other faucet product. Also, the faucet color is coming off and collects a lots of white calcium in and around the edges.
[A]: it is very difficult to install and it did not come with a tool like other faucet product

[Q]: The earrings were beautiful but a pearl came off of one of them after less than a month. Amazon gave me the sellers phone number and I called and left a message, so hopefully they'll replace them quickly. I'm also hoping that I just got a flawed pair and that it isn't a flaw in the craftsmanship of these earrings. I liked that the backs for the earrings didn't slip off too easily like some of the other pearl earrings I've owned - which means I'm less likely to lose an earring. I wonder if perhaps the backs aren't strong enough for the size of the pearls (I ordered the 8mm earrings).
[A]:
The earrings were beautiful but a pearl came off of one of them ...