<?xml version="1.0" encoding="UTF-8"?>
<doctype>
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  </flag>
  <includedSection flag="e1">
    <modelGroup name="e2">
      <elementRef>
        <name>foo</name>
      </elementRef>
    </modelGroup>
  </includedSection>
  <overridden>
    <param name="e2">foo,bar</param>
  </overridden>
  <element>
    <name>doc</name>
    <zeroOrMore>
      <modelGroupRef name="e2"/>
    </zeroOrMore>
  </element>
  <element>
    <name>foo</name>
    <sequence/>
  </element>
  <element>
    <name>bar</name>
    <sequence/>
  </element>
</doctype>
