Instruct: Classify Amazon reviews into positive or negative sentiment
Query: this book can change your life if you're not careful.

Many years ago, I gave my beloved copy of The Catcher in the Rye to my college boyfriend--a dark, sensitive soul who I fancied a modern Caulfield. Weeks, then months passed, and he never mentioned it -- didn't exclaim how Salinger's character so perfectly embodied his own alienation. Well, the relationship lasted for years, but that shabby paperback always haunted me: why did he not understand the enormity of what I had given him? Turns out, he wasn't the misunderstood one, I was. Thanks, Holden