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: Another wonderful, practically edge-of-conscious novel with no definite plot by everyone's favorite perfectly insane Beat writer. In many ways I enjoy this book even better than 'On the Road.' It contains the same exciting beauty, applied to different subjects,and the same eccentric freedom fighters as lead characters. Every once in a while it attains the perfect harmony it seeks, turning long stretches with no apparent action into meditations on the beauty of nothingness, of loneliness, etc. We see the budding alcoholism of our narrator, which wil turn into a book ('Big Sur') of its own. We see what Kerouac saw in Buddhism, and we'll see converts in the book's readers. Kerouac has perhaps more real-life affect on his readers than any other American novelist, one of the few writers anywhere who really can change lives. Blah.
Student:
Positive