<?xml version="1.0" encoding="UTF-8"?>
<doctype>
  <modelGroup name="e">
    <sequence/>
  </modelGroup>
  <overridden>
    <externalId name="e" system="sysid"/>
  </overridden>
  <element>
    <name>doc</name>
    <modelGroupRef name="e"/>
  </element>
</doctype>
