Instructions: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Input: I enjoy Asmov's science books. They are informative, clever and witty. But his science fiction is another matter. They are poorly written. And worse, I didn't believe a word of Foundation. Such accutate prediction is impossible. It's not only extremely difficult to predict the major trends, but to have his character predict such minor details as well is absurd. Just one example of the difficulties of prediction: Isaac Asimov, a well informed and very intelligent man, missed the computer revolution, though it was already under way when he wrote Foundation.
Output:
Negative