system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
Classify each of these as ground transportation or aviation transportation: airplane, truck, bicycle, unicycle, jet, wagon, helicopter.


assistant
Ground transportation would include all vehicles that travel along the ground. From the list you provided these include: truck, bicycle, unicycle, and wagon.

Aviation transportation includes any vehicle that flies. From the list you provided these include: airplane, jet, and helicopter.