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

Example Input: I think the video was really good, im a nurse so i know most of the information already but it will hopefully help my husband. I think my husband preferred the video to an actual class. I mainly chose to use a video because of my schedule. The only thing I would have liked to see a little more was ways to help deal with the pain- like more breathing techniques. Overall I think it was good and would reccomend it.
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

Example Input: Double dip express continues and continues and continues......Thankfully we have Amazon reviews to keep a few buyers from losing out, much like the LOTR Blurays.Still as long as there are consumers to buy these initial skimmed down releases and the studio can make a profit the farce will carry on.
Example Output:
Negative