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

Example Input: I didn't like some of the plot twist, of a former leader of the Autobots but other than that it was pretty good.
Example Output: Positive

Example Input: This DVD is one of my all time favorite musical DVDs. Miss Jackson proves why she is the highest paid singer in the industry. With a combination of costume changes, great choreography, Janet's greatest hits, and a sold out crowd at Madison Square Garden, the DVD makes for an excellent night of entertainment. I only regret that I was not able to see the concert in person here in my home town due to a cancelation of the concert;however, the DVD is definately a suitable substitute. I highly recommend this DVD to any fans of Janet, lovers of music, and owners of quality DVDs.
Example Output: Positive

Example Input: My one-year-old has played with this toy for several months. He disregards the keys and pulls up on the lids themselves. Not quite what I expected. He's had more fun pulling the lids up and pushing them down again, and only accidentally happens upon the moving keys and the noises they make. The sounds alternate between giggles with music background and animal noises, also not quite what I expected. But it's noise I can deal with. The volume can be adjusted or turned off (through I myself can't distinguish between "soft" and "loud" on this thing). My son enjoys the toy, but it may be of limited or intermittent interest.
Example Output:
Positive