<?xml version="1.0" encoding="utf-8"?>

<!--
  Description: Only one occurrence of trackNum allowed.
  Expect:      DuplicateElement{element:trackNum,parent:track}
-->

<playlist version="1" xmlns="http://xspf.org/ns/0/">
  <trackList>
    <track>

      <trackNum>123</trackNum>
      <trackNum>123</trackNum>

    </track>
  </trackList>
</playlist>