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: I have seen four 3D movies on my new 3D TV and this one has been the least exciting as far as its 3D effects. I was disappointed. I am amending this review after watching the movie again. While I did enjoy the 3D version, I felt the 3D effects were subpar. It is still enjoyable to watch and still has the 3D perspective. They don't send things protruding out at you like other 3D movies do. It doesn't have the WOW-factor that other 3D movies have had.
Student:
Negative