Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Flat Stanley is the best children's book ever!

I was recently reading a book to the daughterof a friend. When I thought about my favorite childrens book, Flat Stanley came to mind. I have asked several of my friends about it. None of them remembered. Finally, I talked to my sister. She remembered. We shared some Flat Stanley memories and had a big laugh. I am going to buy this book for all of my friends and their children. It is nice to know that so many others appreciate Flat Stanley too.