Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Ex Input:
I wouldn't recommend this book to an enemy. True, the information may be worthy, but the writing style and the narration were horrible. It is definitely NOT written (nor read) in a conversational manner. I'm willing to cut the narrator some slack as he was only reading what was written, however better inflection, phrasing, pauses, etc... would have greatly helped this otherwise tedious book.I couldn't even finish it. I suffered through the first 5 disks and after all that investment in time I couldn't bring myself to listen to the 6th. Its just that poorly written.I'll restate the fact that the message -- the information -- is worth hearing, its simply written in such a tedious manner that I couldn't stand to hear it through the end.I think I'll donate it to my local library.

Ex Output:
Negative


Ex Input:
Great book for people that need to write email. It would be nice to review the grammar rule's from time to time.

Ex Output:
Positive


Ex Input:
It looks good, but we never had carbon monoxide in our place yet, so we can't tell if it works or not. The red light is on when we plug it in. And it works when we press the test button.

Ex Output:

Positive