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

Example Input: This product worked for 4-5 times and the rotation stopped working. Batteries run out or lose power after 3-4 uses. I would read reviews before buying another one... I am looking into the Hitachi wand massager now and I believe I will buy it since is a power operated toy and will never run out of power.Not impressed with this product.
Example Output: Negative

Example Input: one thing to watch out for,when using the zoom button,dont just let it go after you zoom,or it will click and the noise will be recorded. however,if you edit and can dub different audio then it wont matter. that said, we love the camera.ive been thinking about an off board mic for sterio audio,,just for fun. but since this camera is kinda old now,finding extra parts is kinda tough. when we bought it,they were just comming out and then everything was available,but now,several years later,,, well they arent. ebay or maybe canon outlet in the usa.in fact i just bid on a remote for it,we lost the other one. man,they come in handy.id probly also want a clear over lense to protect the main lense from grit and crud. cheaper to get a new cover than new lense.
Example Output: Positive

Example Input: I bought these for use on my ipod earbuds. I had an old pair (they were green) that worked great, but I lost one. Within minutes of putting them on the earbuds, they split open - all three pairs! If you're planning on using these for your ipod headphones, look into the older colored ones - I believe they're a different material and less prone to cracking.
Example Output:
Negative