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

Example Input: An exellent study of the German Airforce from the fall of Sevastopol in the Crimea to its failure at Stalingrad. Very well written, with a clear analysis of the events. Well worth the money and it belongs in every major collection on World War II's Eastern Front.
Example Output: Positive

Example Input: This is Bernie Taupin's second solo album and it is excellent.From the rockers Born on the fourth of July to his smooth ballads Venezuela and Love(the barren desert). This is a great album for anyone who has followed Elton and Bernie's career.
Example Output: Positive

Example Input: Not too much to say; it is the book I needed for class and I got it at a good price on Amazon.
Example Output:
Positive