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: We purchased six of these heaters in February 2006, and by November 2006 only one was still working. One was DOA, two died within one week of arrival, and the other two died over the next seven months. We live in Southern California so these heaters were rarely used so its not like they wore out. Repeated calls to DeLonghi customer service went unanswered, and the local service company they refer to in their service manual is no longer in business. We are very disappointed with the heaters and DeLonghi and would not buy one from them again.
Student:
Negative