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

Input: Consider Input: If you are not in really good shape this is a great product to get ready for P90X. It does get kind of boring because you are doing the same workouts every other day, but they do work. It is only about 30 mins but it is amazing how well it works.

Output: Positive

Input: Consider Input: This was my first purchase of a vibrator and was very disappointed. It was shipped very discreetly from Amazon directly, but it didn't work. I put in fresh batteries and it wouldn't turn on. I even tested the batteries, they were good, but this rabbit wasn't. Unfortunately, Amazon doesn't take returns on this type of personal product. I simple won't buy anything made by California Exotics again. I'll try one of the other brands next time.

Output: Negative

Input: Consider Input: I guess you have to be a romance novel lover for this one, and not a very discerning one. All others beware! It is absolute drivel. I figured I was in trouble when a typo is prominently featured on the back cover, but the first page of the book removed all doubt. Wait - maybe I'm missing the point. A quick re-read of the beginning now makes it clear. This has to be an intentional churning of over-heated prose for satiric purposes. Phew, so glad I didn't waste $10.95 after all.
Output: Negative