Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Too bad there are no minus stars

George R. R. Martin's Game of Thrones series is a colossal waste of time. I am ashamed to admit I read all five books, constantly hoping they would get better. It's a sad comment on my dogged persistence in the face of overwhelming evidence. I enjoyed J. R. Tolkien's Hobbit/Lord of the Rings and J. K. Rowling's Harry Potter series and their ilk immensely and was sad to see each end. Mr. Martin's greatest talent lies in convincing the reading public to purchase his stories. Martin takes an interesting theme and that should have been well handled in 400-500 pages and balloons it through five books. He constantly introduces new characters and locations throughout the meager plot thread that are never seen or heard from again thus expanding his page count to no purpose. To say this is bad literature is too kind; it's horrible. I bought the series from Amazon for my Kindle. I wish there was some way to get my money back.