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

Bought this set based on low price and good reviews. Works fine for poking logs occasionally and cleaning up when stove is cold, but while using the shovel in the fire, the black coating started bubbling, then caught fire.
Negative

This book was brand new when I received it. However, it did not arrive for 20 days after I ordered it.
Negative

Bought this for my wife on a recommendation from a friend, she read a few pages and quit because it was too sad. I told her it had a good ending but she won't try again, be prepared for tears when you read this one.

Negative