Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An action packed thriller

I liked this book quite a bit. The mix of science fiction and mededine got my adrenaline flowing. I actually started to get scared for the people on the ship. It was amazingThere was one thing of the book that I did not like. Many of the words in the book were very complicated,for example, scientific words. This made some parts in the book very hard to understand.I recomend this book very highly to people who love suspense and danger and the fear of the book.