import java.util.Date;
import java.util.ArrayList;
import java.util.List;

class Employee {
    private final String id;
    private final String name;

    private final List<Assignment> assignments = new ArrayList<>();

    public Employee(String id, String name) {
        this.id = id;
        this.name = name;
    }

    public List<Assignment> getAssignments() {
        return assignments;
    }
}

class Project {
    private final String code;
    private final String title;

    private final List<Assignment> assignments = new ArrayList<>();

    public Project(String code, String title) {
        this.code = code;
        this.title = title;
    }

    public List<Assignment> getAssignments() {
        return assignments;
    }
}

class Assignment {
    private Employee employee;
    private Project project;

    private Date startDate;
    private Date endDate;
    private String role;

    public Assignment(Employee employee, Project project,
                      Date startDate, Date endDate, String role) {
        this.employee = employee;
        this.project = project;
        this.startDate = startDate;
        this.endDate = endDate;
        this.role = role;
    }

    public Employee getEmployee() {
        return employee;
    }

    public Project getProject() {
        return project;
    }

    public Date getStartDate() {
        return startDate;
    }

    public Date getEndDate() {
        return endDate;
    }

    public String getRole() {
        return role;
    }
}

public class Example02 {
	public static void main(String args[]){
	}
}