Instruct: Classify Amazon reviews into positive or negative sentiment
Query: THE PEOPLE!!

I never actually opened this book, but these people are seriously a headache to deal with!!! First, they sent my book out after three emails and within a reasonal amount of time for them to check their email to see that I no longer wanted their book. Now it's been TEN days since I last emailed them about it, NOT SINCE I actually sent the book back, and I still haven't seen my money. Don't know about the actual book, but stay away from these people! Unprofessional, and very, very bad response time.