Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Captivating! More than 5 stars!!

Summer sisters was given to me by a friend. I was going on a road trip to Kentucky and needed something to do. I read it in 5 hours with few breaks. It was incredible! I couldn't put it down. We went out to dinner and I took it with me. I strained my eyes in the dark just to read the last few pages. Vix and Kateline became part of me and this book will stay with me forever! I highly recommend reading this and suggesting it to friends. It was the best book I have EVER read!