You will be given a definition of a task first, then some input of the task.
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

We had signed up for a live childbirth class but then I was put on bed rest and unable to attend. This DVD was absolutely fantastic for us. It is packed full of useful information and actually quite entertaining. I would highly recommend this DVD as a great alternative to a live class.
Output:
Positive