Instruct: Classify Amazon reviews into positive or negative sentiment
Query: LOTS of mistakes

This book is entertaining and well-organized; unfortunately, it's not very accurate. Some of the author's mistakes are due to credulity (it's possible, but not likely, that Butch Cassidy survived his final gunfight in South America; O'Neal reports it as fact); some to partisanship (he's an unabashed Clantonite in the matter of the OK Corral, and thus again reports speculation as fact); and some to ignorance (he doesn't seem to be aware that Florentine Cruz and "Indian Charlie" were probably the same person). The history of the American West is treacherous territory, and nobody can avoid a few mistakes, but Mr. O'Neal seems to make more than his share. I can't recommend this book.