Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great toy, and educational too.

This is a wonderful game. For young kids, its better than Binary Arts's regular "Rush Hour" game because it includes some "junior" level cards, but you'll find even 4-5 year olds can do some of the more advanced puzzles, especially with a bit of help. I play this with my kids, so I can help if they get stuck. This has developed their problem-solving skills like nothing else, and since they love trains it's easy to get them to concentrate.