TASK DEFINITION: Given an English language product review, determine if it is a Good Review or a Bad Review. A good review is one where the product's review has positive tone and Bad review is one where the tone of product's review is negative.
PROBLEM: Interesting book. A bit too much for me, though. The authors spend an excessive amount of time talking about their philosophical views.

SOLUTION: Good Review

PROBLEM: The sound is good enough and the Bluetooth connected great but after a few months they stopped working. I contacted LG for a replacement which was quick to get here with no hassle. So far so good, however, their claim that their product contains "durable materials" has me doubting my purchase. I've worn them every weekend day while work at an office since December 2013 (maybe 2 hours a day, if that) and today is finally the day when one side died.

SOLUTION: Bad review

PROBLEM: This item worked fine when we first got it. It doesn't hold a charge more than 15 minutes now and I am having to constantly remove it from the laptop in order for it not to keep dropping out of charge. Total waste.

SOLUTION:
Bad review