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

Example Input: A classic story based on history. One of Hypatia's crimes appears to have been ready to provide a hypothesis of a heliocentric universe, long before Copernicus and with a much worse response from the Christian community.
Example Output: Positive

Example Input: I was sold this item only to learn, after opening the corresponding Web site necessary for eMarker function, that Sony was terminating the corresponding Web service in 45 days!!A great idea but no support.
Example Output: Negative

Example Input: Tubthumber was the reason I wanted this cd and I got it. About 1,000,000 times on the radio plus 100 on the cd. Now I can't stand Tubthumper.The lyrics and music keep repeating themselves. All the other songs have bad lyrics that are negative too! This was not the best choice for me.
Example Output:
Negative