such as employees.xml / checklist.xml / family.xml / education.xml / education_no_doctype.xml 
EMPLOYEE
  EMPL
    EMPLID
    EMPLNAME
    EMPLSALARY
  EMPL
    EMPLID
    EMPLNAME
    EMPLSALARY
  EMPL
    EMPLID
    EMPLNAME
    EMPLSALARY