Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

[EX Q]: I found this book to be an honest look at the world of hockey goaltending from mites to the pros. My son, who is a youth hockey goalie, enjoyed reading Robb's history and hockey philosophy. A good book for all hockey goalie parents, especially those who are new to the goalie world.
[EX A]: Positive

[EX Q]: Although good quality product, it doesn't fit my ear at all. None of the sizes fit comfortably or snug. I can't use it at all and just wasted my money.
[EX A]: Negative

[EX Q]: One of my 4 Neoprene seat covers got ripped by a vacuum cleaner after just 1 year, something that should not happen to begin with. But Coverking customer service is not helping and would not sell just the replacement seat cover, has to sell 2 at a time, at full retail. Beware of their durability and quality control, and definitely beware of the customer service, or lack thereof.
[EX A]:
Negative