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

Input: Consider 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.

Output: Negative

Input: Consider Input: Well another one of my first dvd purchases...I found this concert very poor...it did nothing for me... the sound quality was poor, The set on stage was quite good but lacked the final sparkle, Janet's performance was glitzy... but sadly something was missing...my advice is puchase Janet's later DVDS...

Output: Negative

Input: Consider Input: one of finlands best kept secrets.this cd is full of power. tarja turunen vocals are just stunning.from the haunting song a dead boys poem to the powerfull she is my sin and crownless this cd is for any one who is into great euro metal a must.
Output: Positive