1<!ELEMENT employeeId (#PCDATA)>
2<!ELEMENT name (#PCDATA)>
3<!ELEMENT position (#PCDATA)>
4<!ELEMENT salary (#PCDATA)>
5<!ELEMENT address (#PCDATA)>
6<!ELEMENT entElement ( #PCDATA ) >
7<!ELEMENT gender ( #PCDATA | entElement )* >
8<!ELEMENT employee (employeeId, name, position, salary, gender, address) >
9<!ELEMENT staff (employee)+>
10<!ATTLIST entElement
11          attr1 CDATA "Attr">
12<!ATTLIST address
13          domestic CDATA #IMPLIED
14          street CDATA "Yes">
15<!ATTLIST entElement
16          domestic CDATA "MALE" >
17
18