Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Maybe I shouldn't write this, I didn't finish the first 50p.

What a boring book! I was lying down and reading it and started to fall asleep. I can't offer any improvements, because I have mercifully blocked it out from my mind. I put it down and read another book which I had read a few days before because it had more excitement and suspense than Blue Mars.