answer: This fourth book
paragraph_question: question: What is your opinion of the book?, context: This fourth book in the Harry Potter series blows the first three books away!  Harry finally comes face to face with his enemy and is forced to use everything he has learned to survive.  This book is slightly "darker" and more frightening than the other three, but even more engaging.  Though this book is over 700 pages, I found myself wishing it were even longer.  Incredible! 
sentence: This fourth book in the Harry Potter series blows the first three books away!
paragraph: This fourth book in the Harry Potter series blows the first three books away!  Harry finally comes face to face with his enemy and is forced to use everything he has learned to survive.  This book is slightly "darker" and more frightening than the other three, but even more engaging.  Though this book is over 700 pages, I found myself wishing it were even longer.  Incredible! 
sentence_answer: <hl> This fourth book <hl> in the Harry Potter series blows the first three books away!
paragraph_answer: <hl> This fourth book <hl> in the Harry Potter series blows the first three books away! Harry finally comes face to face with his enemy and is forced to use everything he has learned to survive. This book is slightly "darker" and more frightening than the other three, but even more engaging. Though this book is over 700 pages, I found myself wishing it were even longer. Incredible! 
paragraph_sentence: <hl> This fourth book in the Harry Potter series blows the first three books away! <hl> Harry finally comes face to face with his enemy and is forced to use everything he has learned to survive. This book is slightly "darker" and more frightening than the other three, but even more engaging. Though this book is over 700 pages, I found myself wishing it were even longer. Incredible!