Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good adventure story

Very good book for anyone with a taste for adventure or a liking of Teddy Roosevelt. Although the book, in my opinion, didn't really take off until about halfway into it, it still had a lot of interesting facts about life in the Amazon, so you had the sense that you were reading not only a non-fiction book but a National Geographic article (author Millard is one of their editors). This was my third or fourth book about Roosevelt, but it was a little bit different. I recommend it.