Given the task definition, example input & output, solve the new input case.
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Example: I've read this book with much expectation, it was very boring all through out the book
Output: Negative
Review writer does not like the book because it was boring, therefore it is a negative review.

New input case for you: Attention! Sheldon's views of Jefferson's thought to not reflect on Jefferson's! I could not believe what I was reading when I opened up this book. I hought that Sheldon had at least a relatively firm grasp on Jefferson's thought after reading his book "The Political Philosophy of Thomas Jefferson," I was sorely disappointed. It appears that Sheldon may understand what he thought, but is not able to translate it to the events of today. It is a shame that Sheldon failed in his effort, because such a work as this, properly done, would be wonderful to see. If you truly interested in what Jefferson would think about current events today, let me sum it up for you. He would be outraged and saddened to see what happened to the once great nation that he helped to found. He would be enraged at the tyrannical activities of our government. As for his political leanings, he would most certainly be a radical libertarian.
Output:
Negative