帮忙绘制一个对参与者进行泛化且绘制用例图代码用mermaid语法输出

    actor Participant
    participant "Use Case 1" as UC1
    participant "Use Case 2" as UC2
    participant "Use Case 3" as UC3
    participant "Use Case 4" as UC4

    Participant -> UC1
    Participant -> UC2
    Participant -> UC3
    Participant -> UC4