<?xml version="1.0" encoding="UTF-8"?>
<!-- types: http://www.w3.org/TR/xmlschema-2/#dateTime -->
<grammar xmlns="http://relaxng.org/ns/structure/1.0" 
         datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
  <start>
    <ref name="element-nvset"/>
  </start>

  <define name="element-nvset">
   <choice>
   <attribute name="id-ref"><data type="IDREF"/></attribute>
   <group>
    <attribute name="id"><data type="ID"/></attribute>
    <interleave>
      <optional>
        <externalRef href="rule.rng"/>
      </optional>
        <zeroOrMore>
          <element name="nvpair">
            <attribute name="id"><data type="ID"/></attribute>
            <attribute name="name"><text/></attribute>
            <optional>
              <attribute name="value"><text/></attribute>
            </optional>
          </element>
        </zeroOrMore>
      <optional>
        <externalRef href="score.rng"/>
      </optional>
    </interleave>
   </group>
   </choice>
  </define>

</grammar>