Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A word of warning for teachers...

I was looking for a pirate-themed book to read to my preschool classes, and this one seemed to be popular so I ordered it. After reading it, though, I decided against using it with three- and four-year-olds. I can see from many of these reviews that some children this age love this book, and it is certainly cleverly written (maybe too cleverly - do three's really need to know about Bora Bora? - or does that kind of thing mainly entertain parents?). However, first of all, on the back cover (not just the dust jacket but the real cover too) is a huge skull and crossbones. I may be old-fashioned but I feel this is inappropriate for young children. Also, the pirates, while buffoonish, do look menacing enough to frighten a small child. There are several more innocuous, age-appropriate pirate books for preschoolers.