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: Fits as expected and is well made. It lacks a cord to tether it to your camera but you can easily purchase one that sticks on the front if you feel you need one. I however prefer to just keep the cap in my pocket when the camera is in use so its not flopping around and getting in the way.
Student:
Positive