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

Ex Input:
The book was boring and to far fetched to be entertaining. The characters were not believable and left me with wanting to many unanswered questions. The author took to many liberties with facts. All in all, I just didn't care for the book, skipped thru pages to end it so I could go on to more enjoyable reading. Amazon offers so many options and choices that I'm bound to pick a lemon once in awhile. I always read the brief description of the book before I buy but in this book that wasn't enough.

Ex Output:
Negative


Ex Input:
What else can I say? All that love CB should own this DVD. I love Charlie Brown and this is a true Christmas classic.

Ex Output:
Positive


Ex Input:
I like a firm bed and found that I needed to physically pump in the additional air pressure. There is that option along with the electric/fill, deflate which is very helpful. I took it camping for five nights and though I topped it off before bed every night, it didn't deflate enough for me to notice in the morning.

Ex Output:

Positive