Instruct: Classify a given review into positive or negative sentiment.
Query: Great Children's Book

What a great book!! Reading this book just before bedtime when your preschooler is "afraid of monsters" is ideal. Are all monsters bad? Grover is afraid of monsters and Elmo is curious. Little Elmo wants to see the monster at the end of the book, but Grover tries to discourage him by placing obstacles in his way. Will Elmo ever see the monster? My 3 1/2 year old thinks this book is great and even participates in the reading. A great read for children and parents alike.