Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Play Worth Reading

The book shows the relationship between Salieri, God, and Mozart, the talented musician. Even though the plot is mostly fictional, it shows really nicely how cruel a vow with God can be if one is so grim to get his own success. It's interesting, how this play is connected with true facts, which you only understand knowing a bit of the real history of Mozart.We really liked the play, because it's thrilling and shows some important psychological aspects. Especially the relation between Mozart and his father is quite interesting. It's worth reading, we really do recommend this great play.