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 was my first Patricia Cornwell novel and I must say I was blown away. I never thought I'd warm up to a modern mystery writer the way I did with Agatha Christie and Dorothy L. Sayers, but Ms. Cornwell has displaced them both in my heart.C & E was by far the most fascinating book I've ever read. I sat up until the wee hours of the morning reading this wonderful novel, devouring every word, as I couldn't go to bed until I had finished it. The only disappointment was the ending. The killer came out of the blue, and there were too many loose ends.The story and characters were first rate and I intend to read all her other books. It's been a long time since I found an author I would be willing to pay hardcover prices to read.
Output:
Positive