Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Tin foil hats

The tin foil hat brigade are the only ones who will believe this drivel. Or even be able to finish the book. Repeats a lot of hearsay, spends too much time on UFOs, shilling for the author's previous books, repeating various nonsensical rubber room rants. Some sections are hard to follow for the non bi-polars among us. I don't believe in PX outside of anti-magnetic mine degaussing, and was only reading it for fun. It wasn't, and I gave up.