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

Ex Input:
Good, sturdy platform for squatting under a barbell. Very firm. Laces are long enough to wrap around ankles, and back of shoe forms a fair notch to retain the laces and keep them from sliding up and off the shoes - would have been better had there been a rear loop. Shoes are better without the insoles because they put a spongy foam wedge under the heels. I replaced them with thin flat insoles from a pair of water shoes. One could cut the foam wedge and use the included insoles. There is no raised heel other than that foam wedge. They run true to size or slightly tight.

Ex Output:
Positive

Ex Input:
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.

Ex Output:
Positive

Ex Input:
Nappily Ever Afer was an outstanding book. I couldn't put the book down for two day's straight. Khandi reminded me of a lot of black women I know, beatiful but very insecure about them selves. I was very glad to see Venius found herself at the end. I couldn't understand for the love of me why a woman would want to force a man to marry her the way she did. I guess I learned a thing a two about the way women think when reading Venus' thoughts. This was a very intresting book, I'll be looking forward to reading the author's next novel.

Ex Output:
Positive