Given the task definition and input, reply with output. Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

After years of searching, which ended with a 400 or so page photocopied version with missing pages, I found this book. This book is the only in depth and detailed english language record of almost all vegetation on Okinawa and the Ryukyu islands that I know of. The information within is in both Japanese (an older style) and English. I know of no other place that this book exists aside from the post library on Torii Station.
Positive