Definition: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Input: I bought this DVD for the Mozart Symphony #35. However, it is very difficult to access the work. I finally figured out that the only way to do it is to fast forward through the final movement of the Lebrun Concerto. This problem was in evidence on several different DVD players one of which can track DVDs with any region code. There are some wonderful performances on this series. Too bad the engineering is so poor.
Output:
Negative