Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Yeah, we know Greg must be a great person, but don't repeat it!

If you want to read and learn about a culture of Pakistan and Afghanistan, you should find another book. This is the book about the life of Greg Mortenson and how great he is. After the half of the book, you would find everything is repetitive and feel like "Yeah, we know Greg must be a great person, but don't repeat it!".Don't get me wrong. He did some good thing I could never be able to do.