Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Colossal disappointment

Mom and grandad built this because he lost interest after ten minutes when we were still figuring out which way round everything went. A bunch of tiny screws that mom had to screw into very fragile plastic. No explanation to kids about what the parts of the engine actually did in reality. A much smaller toy than we imagined and once it is built you'd be absolutely crazy to take it apart to construct again. There is no way an 8 yr old would have the mental endurance or interest to stay with this project from start to finish. But hey, it lights up!