Jaxb how to create xml element container for other xml element

I have some class:

public class Human{
    private String lastName;
    private String firstName;
    private String patronymic;
    private String dateOfBirth;
    //..
}

I want marshall this class to some xml:

<human>
   <fio>
        <lastname></lastname>
        <firstname></firstname>
        <patronymic></patronymic>
   </fio>
   <dateOfBirth><dateOfBirth>
</human>

What annotation is used to create pseudo-container fields?