Instruct: Classify Amazon reviews into positive or negative sentiment
Query: River of Doubt

Because this book never arrived from the seller I am very disappoined in Amazon's choice of vendors.I did eventually get the book from my local library and it is one fantastic read of TR and his adventure on the Amazon. Very descriptive as author did through research into all the vegetation and amphibian life on this tributary of the Amazon. Rapid crossings and mountainous landscape made for an extreme ride in dugout tree canoes. Rah, Rah TR quite and adventure to get over the loss in 3rd election.