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

Input: Consider Input: I bought two sets of these. They're priced at $9.50. But, when they arrived, the price tag still stuck on the item says $2.99. Nice way to hide your "shippign cost" ($6.51) from your customers! This company goes on my "Never Again" list!

Output: Negative

Input: Consider Input: "Castle" is a wonderful book for children who have short attention spans. It provides adventure and re-affirms the laws of chivalry.

Output: Positive

Input: Consider Input: Reading the numerous exalting critiques of this new CD by Lhasa, I finally gave in and bought it... I have to admit, that the exoticism of the "haunting" style of interpretation can be captivating to the ones not familiar with the Mexican or Latin-American musical traditions. However, the various musical styles appropriated in this CD merit greater diversity in interpretation.
Output: Negative