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

Ex Input:
I picked up Hard Times preparing to enjoy it since Charles Dickens is my favorite author. While not going so far to say that I was disappointed,I will say that it was the first Charles Dickens novel that I almost felt like not finishing. Not only is the plot rather humorless, but the characters are charmless and almost uninteresting. If it hadnt been written by Dickens then I may have liked it better but as it was it did not have any of Dickens usual charm and humor.

Ex Output:
Negative

Ex Input:
I purchased the Intex airbed to replace an Aerobed that our cats "loved" too much during a guest visit. Comfort wise, the Intex wins hands down-supportive yet comfortable as well. Convenience wise, it inflates a little slower than our old Aerobed (albeit, there is more to inflate) yet it takes up less room when rolled and stored in the sack that comes with it. The only reason I didn't give it 5 stars is because it is VERY high, so a restless sleeper can fall off pretty easily.

Ex Output:
Positive

Ex Input:
This has to be one of the worst books i EVER picked up. Within the fist 50 pages, iwas bored out of my mind. I don't know why everyone think this book is SOOOOO good, don't listen to them. If you like BAD books this is the one for you! I hope Asimov has some better books, cause he has to be acclaimed a good writer for something (or book)!

Ex Output:
Negative