Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Better Get Your PHD Before Reading This One

I read Jurrasic Park with great enthusiasm. I'm no scientific genius but I could easily follow the science in the plot, which made the book very enjoyable. Not so with this one. The science in the beginning seems like it could be comprehensible to a knowledgable person. However as the novel goes on, it begins to wheel completely out of control, and in the concluding sections just gives way to slam-bang action. Mr Crichton seems to have no consideration for the familiarity of the reader with the scientific aspect of this story. A dissapointment to me.