Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Surprising Opposites

This book begins with easy to understand opposites and progresses to more difficult concepts. One of these is ABSTRACT/CONCRETE where abstract is an abstract painting and concrete is depicted by a cow! You should be prepared to explain this concept to a 2-1/2 year old! One additional problem comparison in the book is CANDY/MEDICINE. The differences between the red items is not clear enough and I would not recommend this title for younger than six.