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: As any fan of Nirvana is well aware, Kurt Cobain had a fear that was close to outright paranoia about Nirvana's music being milked and exploited to make a buck. All of a sudden, that fear seems totally legitimate.This is (basically) the 3rd "Greatest Hits" cd that's been released under the band's banner. Nirvana only had three studio released cds. Well ... four if you count 'Incesticide.'If you're a younger fan and you want a terrific introduction to the band's work save your money from cd and save up for the 'With the Lights Out' box-set. It doesn't cost too much and is a great way to break into the band.A true Nirvana fan understands that the only meaning behind this piece is dollar signs.
Student:
Negative