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

Input: Consider Input: If you are of a certain age and experience, you already know about Dharma Bums.If you are of another certain age and experience, this book goes against everything taught by Saint Ronald Reagan, and so you should avoid it.If you are young, give this book a try. Better yet, instead of buying it, go to the local library to read it. Unless the people I described in my second paragraph have taken over and there are only Approved Books in the library...if there are libraries at all. Libraries cost money, and that means (shudder) taxes.For everyone else: this is Kerouak's best work.

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: This live recording of Incantation IS a must own. Very few copies were put into circulation and I picked up my copy via amazon's used marketplace a few weeks ago. I love their studio albums and this live album is outstanding. The drums sound great as well as the production values. A must own.
Output: Positive