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

Example Input: I have had the charger for more than two years. It charges AA batteries just fine, but has a huge problem securing smaller AAA batteries. To charge the smaller batteries you need to flip down the little button at the positive end. In the beginning one of the four AAA batteries would pop up, and now three out of the four won't hold. The problem is the flip mechanism became loose, and any horizontal pressure would push the buttons back up. What I have to do now is using duct tape and a segment of crayon, apply the crayon on the buttons, and wrap the tape around. You know how painful that is.
Example Output: Negative

Example Input: Although this is a wonderful working power adapter, I don't believe it is the Macally Adapter that was advertised. I am however happy with it and would shop with this vendor again.Thank you.
Example Output: Positive

Example Input: Dont bother with this crap! It is one of the worst if not the worst! Movies that I have ever seen! It has bad acting,story and it is so so boring! I dont understand the point of this movie! TERRIBLE! DONT BOTHER!
Example Output:
Negative