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

Ex Input:
You aren't saving any being this adapter. I purchased this for a 12" G4 Powerbook. The power it supplies goes on and off constantly. This can't be good for the computer. It certainly doesn't charge it. Don't waste your money on this Macally adapter. Try to find an original Apple adapter if you can.

Ex Output:
Negative


Ex Input:
Do not buy this toy. If you are given this toy as a gift, return it for store credit. This is a flimsly and poorly designed stack of platic and paper. The secret door doesn't work, the elevator doesn't slide and toys get stuck in there. The suggested 10" batman doesn't work with the zip line, bungee or even the elevator. The add says "Using new adhesive technology, you can set up the Batcave on just about any wall" so they want us to glue this thing on to a wall.Please don't buy this toy.

Ex Output:
Negative


Ex Input:
Very interesting read, if you love history you will love this book as I did. I could not put it down.

Ex Output:

Positive