| <?xml version='1.0'?> | |
| <!DOCTYPE root [ | |
| <!ENTITY % deftest '<!ELEMENT test (#PCDATA) >' > | |
| <!ENTITY % defmiddle '<!ELEMENT middle (test) >' > | |
| <!ENTITY % defroot '<!ELEMENT root (middle) >' > | |
| %defroot;%defmiddle;%deftest; | |
| ]> | |
| <root><middle><test>sample</test></middle></root> |