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

[Q]: 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.
[A]: Negative

[Q]: There's not much learning either. Sheri is incredibly condescending when she mimicks pregnant women. This video could also really use some visual aids besides Sheri holding up a poor illustration, writing lists (that she doesn't finish) on a whiteboard and the worst...her on the ground, legs spread in high-waisted khakis demonstrating childbirth.
[A]: Negative

[Q]: This book gave me a overview of tequila that included the agricultural considerations, cultural heritage, and history of mescal de tequila, not just a guide to making margaritas. It is well written with enough detail to satisfy the curious, yet straightforward enough to allow for the average reader. Exceptionally informative book!
[A]:
Positive