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

Example Input: We bought this for my 4 year old son for Christmas and I am very sorry we spent our money on it. Putting it together was not fun, but the real disappointment came when it was done and you see what it is. I think it is unrealistic to think that most people will want to or ever allow this toy to be STUCK to the wall with an adhesive (it says not to leave it stuck there for long periods of time - you must remove it from the wall after playing with it - which means this flimsy piece of plastic is now laying on the floor). After playing with it for 10 minutes, the elevator gets stuck. The top keeps falling off, everytime I turn around my son is whining that this came apart or that came apart. I assume I will be super gluing it before long. I feel ripped off as a consumer. Buyer Beware!
Example Output: Negative

Example Input: I wish I could rate this camera -9999999999999999999999999999999. Actually what I really wish is to mound all of the Vivitar Vivicam 55 cameras up in a pile and BURN THEM. Anyway, I found this camera at Walmart thinking it should be good for the $20 price tag they were asking. When I first opened this wannabe camera I noticed the buttons were very cheap. More than half the pictures taken were either blurry and/or yellowed. Don't bother trying to create a video with this thing unless you like a still frame video. I brought it back after I did some research and found the Logitech C310 Webcam for several dollars more here on Amazon(which has HD!). This is the worst camera i have EVER used. Live and learn, and never buy anything made by Vivitar. Shop around and spend a few extra dollars for a better camera. If not, you get what you pay for.
Example Output: Negative

Example Input: Once again Pitchshifter seems to have outdone themselves. With cuts like "Hidden agenda" and "Condescension" How can one go wrong. With Pitchshifter's hard-edged combination of punk, techno, and metal; and the brutal social commentary, this easily became one of my favorties.
Example Output:
Positive