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

Example Input: I had placed a huge order for my children for christmas. I was so upset when my children got the movie and there was no disc at all. so my bad review is with the company not with Amazon since they were kind enough to fix this problem and send another movie free of charge and free of shipping!! Thak you!
Example Output: Negative

Example Input: Does a great job highly visible. Works well with the different fencers that I use in the different pastures. Last a long time. Can't beat it for the price.
Example Output: Positive

Example Input: I was quite disappointed with this collection. After the first three stories, I basically gave up. Interesting concepts that could have benefited a great deal from a really good editor. This stuff really belongs in 12th grade creative writing class.
Example Output:
Negative