Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A must if you're going to Maui

Finally, a guide book that gives honest opinions- good AND bad! This is a must for the Hana drive. You'll see so much that others miss. Make sure you get this well before you leave so you can take advantage of the helpful pointers on, for example, what to pack to wear on the volcano. I would have been lost in Maui without this book.