Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A must have!!!

My son loves this dvd!!! He also has the Lots To Learn Music (which he loves too) so at first he was confused. But he loves both videos. I'm really impressed with the variety of activities, music, and quality of the production. Great tool teaching children all about nature and the things around us. I like to control what my 2 yr. old son watches on tv and Lots To Learn Nature is a dvd must have!