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

Ex Input:
I like the book Castle In the Attic because it was very adventurous. My favorite part in the book was when Mrs.Philips gave William a gift. Do you know what the gift was? Can you figure out what it is? I recommend this book because Castle In the Attic is a very exciting novel to read.

Ex Output:
Positive


Ex Input:
Even thou I enjoyed the art, the book wasn't in english. I wanted to read and understand about the art, to bad.

Ex Output:
Negative


Ex Input:
I purchased this slot machine thinking it was larger than it was and also hoping it would at least perform a little better than it did. It doesn't even require a coin to release the jackpot. Overall, this machine is not worth purchasing.

Ex Output:

Negative