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

Example 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.
Example Output: Positive

Example Input: i thought it was a very entertaining movie, should have gotten more press when it came out. very good acting also
Example Output: Positive

Example Input: I'm writng again to say that this book has so many correct details, and the other books in this series are correct too. For instance, Speelbound has it right calling the Salem witch hunts the Burning Times. real witches do to. Isis is a a major person in witchcraft, and Hecate was the first witch. L.j Smith might as well be a wtich or vampire or whatever else for all the right details she has
Example Output:
Positive