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

Input: Consider Input: I buy/view/listen to a lot of music video's (read, sorry night life) and this one was a disappointment. Sound varies too widely act to act. Couple of goosebump moments (I love the Mega-Guitars on Kansas City) but mostly a smorgas-bored of available talent putting in their charity work. Zero additives for the video freak and no real explanation of charitable intentions ever given. Borrow this from someone instead.

Output: Negative

Input: Consider Input: If I could give this half of a star I would. I am a big fan of Nirvana, but this was a total disappointment to me. The tracks sounded awful. I felt like I was ripped off in every sense of the way. I took it to a buy-trade-sell place and not even they would offer me anything for it, which shows you the poor quality of this album. A word of advice; DO NOT BUY THIS!!!!!

Output: Negative

Input: Consider Input: Having heard the author speak on the radio, her works praised highly by the host, I decided to start with the first of the Monk series. Unfortunately, I found the main character thoroughly unsympathetic and unlikable. The story was slow as molasses with bits and pieces of useless information thrown in to fatten the book. Also, I don't know the clinical features of amnesia, but it seemed that Monk's memory loss was selective and inconsistent. The ending was highly anti-climactic and the fate of the characters in question never revealed. I was very much looking forward to reading her books, but was sorely disappointed.
Output: Negative