<?xml version="1.0"?>
<!DOCTYPE root [
<!ELEMENT root ANY>
<!ELEMENT a (#PCDATA)* >
<!ELEMENT b (#PCDATA) >
<!ELEMENT c ( #PCDATA)*>
<!ELEMENT d (#PCDATA|c)* >
<!--* Duplicate element types in Mixed content decl *-->
<!ELEMENT e (#PCDATA|a|a|b|c)* >
]>
<root>
<a> Element type a </a>
<b> Element type b </b>
</root>
<!--* a invalid test: tests P51 VC: No Duplicate Types *-->
|