Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Useless

A large percentage of the sophomore class at my school takes the AP Comparative Government and Politics exam. We were warned not to purchase this book, but some chose to ignore this warning, including one of my friends. I borrowed the book to look through it and found the questions useless and irrelevant. She received a 2, a non-passing mark on the exam, while I received a 5.