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.

This is an excellent product to use for a bluetooth headset. I use it with the Samsung Wep200 and it fits perfectly. It comes with several different sized gels, which can be shared with family members. This product finally allows me to use my bluetooth without worrying about the headset falling from my ear during normal use.
Output:
Positive