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
Of the following, which are car parts, which are boat parts and which are both: tires, propeller, engine, rudder, sail, seat belts, head lights, and rear view mirrors.


assistant
Tires, head lights, and rear view mirror are car parts.  Propeller, rudder, and sail are boat parts. Engine and seat belts are part of both.