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

Example Input: I thought this book was long, drawn out, and boring. It was too descriptive. To me, the writing style is a lot like Jane Eyre. I don't particularly like that type of book.Plus, it was way too sad and unrealistic. I don't think THAT many bad things could happen to one person.
Example Output: Negative

Example Input: Received this in great time- I have no problem with the seller:-)BUT! The inside of the case lists all types of materials this can cut including metals, which is what I got it for.One punch through soft 26ga copper sheet and the edges of the punch bent & in some areas, flaked off. The second disk I cut did it in completely. I had to file all of the edges and it probably would have been easier to cut the sheet with shears.So, not for metals.However, I can see it would be great for leather, paper & plastics.To me it was worth the money spent on the chance that it would actually cut metal disks.
Example Output: Negative

Example Input: I don't know what it is about this movie but it's a classic 80's flick! Mark Harmon is at his best. The plot is a little predictable but it's entertaining and takes you back to the decade past.
Example Output:
Positive