Write an abstract superclass encapsulating a vehicle: A vehicle has two attributes: its owner's name and its number of wheels. This class has two non-abstract subclasses: one encapsulating a bicycle, ant the other encapsulating a motorized vehicle. A motorized vehicle has the following additional attributes: its engine volume displacement, in liters; and a method computing and returning a measure of horsepower which is the number of liters times the number of wheels. You also need to include a client class to test these two classes.

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