Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sleeping Chem-pill

I suppose all IB textbooks are roughly as boring as each other.Look at the Glanville on for Economics, it's kinda the same type.OK! Let's go on with this Chem one. I did made me sleep one night while I was trying to revise........ So, if you can't sleep, simply just read it!