Detailed Instructions: 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.
Q: This book is a must have before you take your first step on learning the theory behind game theory. I found it lacking in depth - but then, I'm neither an astrophysicist nor mathematician. It was nonetheless very interesting to read and get some idea of what goes into making AI successful. Of course, playing games are required for this. After all, we don't expect robots controlling robotic drones to play chess either. Even so, it's a great reference work which should help anyone who wants to further their understanding beyond games.
A:
Good Review