<?xml version="1.0" encoding="UTF-8"?>
<grammar xmlns="http://relaxng.org/ns/structure/1.0" 
         datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
  <start>
      <ref name="attribute-score"/>
  </start>

  <define name="attribute-score">
    <attribute name="score">
      <choice>
	<data type="integer"/>
	<value>INFINITY</value>
	<value>+INFINITY</value>
	<value>-INFINITY</value>
      </choice>
    </attribute>
  </define>
</grammar>
