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

[Q]: It does an excellent job on mildewed wood such as decks and deck furniture without using chemical mode which is the only weak link in an otherwise strong chain. Unfortunately, the only effective chemical solution is chlorine which acts more or less on its own but cannot be used with this machine. Safe cleaners, such as Simple Green are no more effective than when used without them. Other than that, it's a great product.
[A]: Positive


[Q]: This band has a straight forward approach to music that is sturdy, simple, aggressive and a little annoying, in a good way. The often frenetic lead guitar is right up front to create a classic rustic American sound. This band must like Blind Willie McTell as they cover Dying Crapshooters Blues and mention Mctell in their original track Down at Danny's. If you are looking for something different with a classic American roots music sound - this is a nice find.
[A]: Positive


[Q]: I'm a late comer to Terry Pratchett but have utterly gotten caught up in the world he's created and the incredibly intelligent books. While I greatly enjoy the book itself, I was highly disappointed with the ebook because it is missing numerous pages in the version for the iphone. Unfortunately I passed the deadline for a return. Missing one or two pages is not appropriate but not a big deal. There were at least 4 places that were missing 4-6 pages in the iphone version.
[A]:
Negative