The figure below shows a class diagram that might be used in developing a system to simplify the scheduling and scoring of judged athletic competitions, such as gymnastics, diving, and figure skating. There are multiple events and competitors. Each competitor may enter several events and each event has many competitors. Each event has several judges who subjectively rate the performance of competitors in that event. A judge rates every competitor for an event. in some cases, a judge may score more than one event. Trials are the focus of the competition. Each trial is an attempt by one competitor to perform his or her best in one event. A trial is scored by the panel of judges for that event and a net score is determined. Add multiplicity to the diagram. Add the following attributes: address, age, date, difficulty factor, score, name. (In some cases, you may wish to use the same attribute in more than one class.) Add an association to the diagram to make it possible to determine a competitor's intended events before trials are held