Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The first half is great!

While the dinky drawing on the cover wasn't encouraging, and then when I turned to the Bibliography I was ready to forget reading it at all. However the material presented by Preston.B. Nichols on UFOs and implants at the front of the book was excellent! Unfortunately the rest of the 'fill in' by Peter Moon I considered absolute rubbish. Read anything by Mr. Nicols on this subject and you will not be disappointed....