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 is my 3rd pressure washer and by far the best of the breed. It is solid piece of work that is easy to move about when doing the deck(s)with wheels that actually work. Santa gave me the one with the roll-up hose which is very nice feature. Only problem was that the User guide didn't have any information on this feature so I spent a few minutes trying to figure out where or how to connect the high pressure hose to unit- Guess What? - No need to connect anything except garden hose. I consider this tool the best buy for your $$$$
Student:
Positive