Teacher: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Teacher: Now, understand the problem? If you are still confused, see the following example:
I've read this book with much expectation, it was very boring all through out the book
Solution: Negative
Reason: Review writer does not like the book because it was boring, therefore it is a negative review.

Now, solve this instance: This book was a very poorly written effort in my opinion. Additionally, the author would have you believe that the terriorism that exists today is the fault of the U.S and the protestants that make the U.S. their home. It would seem that the author alines himself with Osama Bin Laden and those who wish to control the middle east. It's hard for me to imagine that this man is a professor at Columbia University. Instead of wasting his time here, he needs to return to his own country for the purpose of educating his own people.
Student:
Negative