Instruct: Classify Amazon reviews into positive or negative sentiment
Query: These giants have a message for us all

Katy Payne's Silent Thunder is a giant of a book about the giant of land animals. These salient creatures were here long, long before us. (Remember learning about the hairy mammoth?) They survived ice ages, plate technonics, fire, draught, meteors and more. But can they survive us? Does it matter? Once you read Ms. Payne's sensitive account of the elephants of Africa and the people who study them, the survival of these giants will matter as never before.