A Parking Lot is full of automobiles.
Does the number of wheels in the lot depend on the number of automobiles.
3 answers
Each automobile has 4 wheels. If a parking lot has 400 wheels, it must have 100 cars.
Well, then is the number of wheels per automobile a characteristic property of automobiles that distinguishes them from other vehicles?
If you were in Amish country, you'd find wagons with 4 wheels. Can you think of any other vehicles with 4 wheels?