Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Wonderful book for a 4 year old!

My son who just turned 4 absolutely adores this book. He can spend forever looking at each page, finding each numbered hamster while always finding something new too. We all laugh out loud at the silly antics of those hamsters. We can't read it before bedtime though - my son gets too excited and wound up! We tend to read it during the day more. I really enjoy 'reading' this book, and my son and husband love poring over the pictures. A must have!