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.

Folks, till foundation happened to me, I had for some inexplicable reasons never got introduced to world of science fiction (SF).(unless you call hitchhikers guide to galaxy as one) Based on influence of the die hard coterie of Asimov's fans, I decided to start my journey with Foundation...........and I have really found it cool stuff............worth reading and excellent investment of time..........since it rejuvenates you with fascinating ideas and terrific narrative. Looking forward to picking up the next one.
Output:
Positive