Problem: 
Q: Title: A terrible book. Review: I found this book incomprehensible even though I got A's in the prerequisite courses for the complex analysis course that used this book. I then got Churchill and Brown's book (ISBN: 0070109052) and things were back to normal. Is this product review negative?
Answer: Yes
Problem: 
Q: Title: Kevin is great Review: One of the best i have heard, Kevin has a unique way of doing motivation and nerves of steel is a great piece of work Is this product review negative?
Answer: No
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Q: Title: Leather Streches out then the ENV hits the CEMENT Review: Leather Streches out then the ENV hits the CEMENTOther than that the Price is a little high! Is this product review negative?
Answer: