Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Kindle version is a mess

Having 5 practice exams on your iPad seemed like a great way to study for the exam. Unfortunately nobody bothered to proof this e-book before selling it to the public. The numbers in the answer key don't match up to the questions or the answers just got left out of the answer key all together. It makes it more difficult as a study guide than just reading the textbook. I contacted the publisher thinking of course they have realized their embarrassing error and can they send me the corrected version. Instead, they emailed me back wanting me to walk them through the errors, which they will send to the author/editor and then I can contact Amazon about getting a revised version of the e-book someday. Really a cheap product and not worth the money.