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

Example Input: I don't know if you can actually call this music. It is truly terrible. However, I love listening to it for some strange music. ... I am not normally a fan of rap music, but I laugh out loud every time I hear some of these songs. These Cash Money guys should be comedians. Except for Juvenile, since I can't understand anything he says, which is also rather funny. Don't buy it for the music, but it for the comedy.
Example Output: Positive

Example Input: This book should have been written more as a novel than a how to. This book goes into story like dimensions and there are others better written on the subject.
Example Output: Negative

Example Input: First of all you have to already have a pretty stiff erection to get this thing on. Secondly, we've used it twice and the third time we went to use it one of the dolphin heads split apart from the main ring. We've washed it both times we used it with toy cleaner - nothing harsh. It's cheaply made and the batteries do not last at all. Once it was on it really didn't do what it is supposed to do - it's more awkward than anything. Definitely would not recommend.
Example Output:
Negative