<?xml version="1.0" encoding="UTF-8"?>
<!-- This Relax NG schema has a non-deterministic content model
     (which is allowed).  XML-Parser-Validate-Regexp_1.xml should
     validate against this schema. -->
<grammar xmlns="http://relaxng.org/ns/structure/1.0">
  <define name="root">
    <element name="root">
      <ref name="attlist.root"/>
      <choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
        <group>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
          <choice>
            <ref name="a"/>
            <ref name="b"/>
          </choice>
        </group>
      </choice>
      <ref name="b"/>
      <group>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
        <choice>
          <ref name="a"/>
          <ref name="b"/>
        </choice>
      </group>
    </element>
  </define>
  <define name="attlist.root" combine="interleave">
    <empty/>
  </define>
  <define name="a">
    <element name="a">
      <ref name="attlist.a"/>
      <empty/>
    </element>
  </define>
  <define name="attlist.a" combine="interleave">
    <empty/>
  </define>
  <define name="b">
    <element name="b">
      <ref name="attlist.b"/>
      <empty/>
    </element>
  </define>
  <define name="attlist.b" combine="interleave">
    <empty/>
  </define>
  <start>
    <choice>
      <ref name="root"/>
    </choice>
  </start>
</grammar>
