input:  Now, answer this question: Title: VERY BIASED Review: I am an archaeologist and historian, and bought this book hoping to read an unbiased account of this controversial event. Instead, this book is extremely biased, unprofessional, riddled with errors, and simply a complete waste of time. Is this product review negative?
A:
output: Yes

input:  Now, answer this question: Title: dry humor Review: I usually enjoy Spanish writers. Not this one. Actually I had to force myself past the first pages, but I reached a point where I just could not continue reading it. Is this product review negative?
A:
output: Yes

input:  Now, answer this question: Title: 3rd edition renders earlier versions obsolete Review: Now that the 3rd edition has been "Fully Updated, Revised, and Expanded," caveat emptor---let the buyer beware---about buying an outdated publication. Is this product review negative?
A:
output: