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

Example Input: My 2 year old son is huge Thomas fan. This DVD has long introductions to each story in which children and adults are interviewed - my son couldn't care less. He just wants to see trains! We have a portable DVD player, and it is a big pain to try to fast forward past these introductions, and he (and I) just ends up frustrated. My advice - pick another DVD.
Example Output: Negative

Example Input: The book I downloaded on my Nook and Kindle doesnt seem like the same one I read in school. This version Bored me to tears.
Example Output: Negative

Example Input: Why would someone pay for what they cannot have? Let the customer choose the color of the product they want to purchase!
Example Output:
Negative