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

Example Input: worst smells like chemicals I hate it never bought powder worst than this afraid to use and get an acne
Example Output: worst smells like chemicals I hate it never bought powder ...

Example Input: Used on Merrill hiking boots - mixed leather and synthetic. Ineffective.
Example Output: Sprayed boots 3 times, still not noticeably more waterproof

Example Input: First, these do not cycle well from magazines in either pistols or rifles. They may even damage feed lips on mags. Therefore, these are worthless for a training aid. Second, they are brittle and have a limited life span. The only use for these would be for function testing since you can see a notch cut out in the cap after firing it so you can see if your firing pin is working.
Example Output:
Do not cycle well from magazines, cheap-limited life span