| <!ELEMENT employeeId (#PCDATA)> | |
| <!ELEMENT name (#PCDATA)> | |
| <!ELEMENT position (#PCDATA)> | |
| <!ELEMENT salary (#PCDATA)> | |
| <!ELEMENT address (#PCDATA)> | |
| <!ELEMENT gender ( #PCDATA)> | |
| <!ELEMENT employee (employeeId, name, position, salary, gender, address) > | |
| <!ELEMENT staff (employee)+> |