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

Example Input: The Sansa View 8GB I received was faulty. The battery would not hold a charge and/or the player would not turn on. This happened within hours of opening the player packaging and attempting an initial full-charge of the player's battery. The battery is only chargeable via USB and I tried using a PC and an AC to USB adapter to charge it. There is no hard reset button like I have seen on other players (namely Cowon brand players) so it could not simply be reset.I decided to return the product for a refund because it did not seem worth the trouble of waiting for a new (or repaired) player. I was not very impressed with the build quality of the player. It felt and looked very prone to scratching or other damage if not treated with extreme care. Furthermore, I found another player that suited my personal needs and desires better than the Sansa View.
Example Output: Negative

Example Input: I recall this recording on LP in the early fifties. It conveys the humour and genius of Mozart with great singers although other than Steber they were not previously identified with WM.
Example Output: Positive

Example Input: 20 dollars and 2 1/2 hours I can never get back. I was disappointed by this movie I am actually embarrassed I bought it last Friday when it came out. My kids were so excited but after 2 hours even they had enough. During the scene where the building is crashing down My 9 year old asked What did Optimus Prime go on a lunch break? Once he did show up he made short work of the bad guys. The action scenes were amazing at first but became boring and tedious real fast. Shia LeBeouf is awful, his stupid jokes always seemed to come at the most inappropriate times. John Turturro's character may be the most stupid, intelligent character in a movie ever. No character development, no real emotion and Transformers that in many scenes never even fought back. If you have to rent it skip the first 45 minutes, but don't buy it it's just not worth it.
Example Output:
Negative