TASK DEFINITION: Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.
PROBLEM: worst than original battery

SOLUTION: Negative Review

PROBLEM: Tried everything. Doesn't work for MacBook even though it says so. Directions are hard to follow. Don't buy if you don't know much about computer and wifi or own a Mac.

SOLUTION: Negative Review

PROBLEM: I'm not sure why A-Data can't make a card that doesn't fail so often. Cheap enough, but the warranty system is a little complicated, and replacing junk with more junk doesn't really cut the mustard.

SOLUTION:
Negative Review