result/dtd5 - third_party/libxml2 - Git at Google

 <?xml version="1.0"?>
 <!DOCTYPE doc [
 <!ELEMENT doc (#PCDATA | a | b)*>
 <!ELEMENT a (#PCDATA)>
 <!ELEMENT b (#PCDATA)>
 ]>
 <doc>
   <a>This</a>
  is a   <b>valid</b>
  document</doc>
	<?xml version="1.0"?>
	<!DOCTYPE doc [
	<!ELEMENT doc (#PCDATA \| a \| b)*>
	<!ELEMENT a (#PCDATA)>
	<!ELEMENT b (#PCDATA)>
	]>
	<doc>
	<a>This</a>
	is a <b>valid</b>
	document</doc>