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

Example Input: I was expecting to read a book about the Amish. What I read instead was a very self centered book about a woman searching, rather blindly, I felt, for herself.She had very little in the way of insight into Amish life, even after spending a period of time with them. And her inability to get outside of her own head/her own life was not terribly interesting to read.For someone who always longed to be a 'star,' I am sure publishing a book was quite a thrill for her. Shame she used the Amish as a platform for her own ego.
Example Output: Negative

Example Input: This is one for the hard core action fans. There's very little 'down time' to run for popcorn. If someone isn't getting shot, punched, etc. things are getting blown up or sunk in water. There is an action scene I haven't seen yet with a police car. Several of the action scenes are worth a rewind and I did appreciate the 'buff bodies'. You have to give these guys an A plus for working out.Chrissy K. McVay - Author
Example Output: Positive

Example Input: When I heard their first album, leitmotif, I was blown away (something that only ocassionally happens). A fascinating album, combining various instrumentals with well placed vocals. so some time went by and eventually I bought the follow up, el ceilo (sp), and to say the least it was really damn disappointing. songs were too structured, ambiant sounds were predictable and not-interesting. and the lyrics SUCKED. i was really bummed. but then I saw a new album comming out. alright, perhaps they learned from mistakes, perhaps every song won't sound over-produced and catchy. instead, it only got worse. if you had never heard this band before, "catch without arms" will probably sound alright. but if you knew how good they were on leifmotif, don't buy this. i feel like i wasted my money (and i rarely feel that way about music). dredg has lost whatever it was they had. they are just mediocre. a real tragedy
Example Output:
Negative