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.

I am very happy with this product. They are very comfortable and come with 3 diffrent sizes that should work for most people. My only gripe is that they don't fit every single diffrent headset out there. They worked great for mine but I need a new one and I noticed that only about half of the bluetooth headsets out there will fit these.
Output:
Positive