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

Ex Input:
I bought these to help with what I've read, to get the Jawbone to fit better. These ear pieces were hard to get into the ear no matter what size I tried. For a wireless earpiece you want to be able to get it on and off your ear quick if you need to, and these prevent you from doing so.

Ex Output:
Negative


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:
"Easy A" explains it best. If you can't relate in some way you must be a robot. Greatest book ever.

Ex Output:

Positive