[10] Given Order System of an application. It describes a particular aspect of the entire application.

• Order and Customer are identified as the two elements of the system.

• Order class is an abstract class and it has two concrete classes (inheritance relationship) SpecialOrder and NormalOrder.

• The two inherited classes have all the properties as the Order class. In addition, they have additional functions like dispatch () and receive ().

  Please draw UML class diagram for the system