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

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

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

      <duration>123</duration>
      <duration>123</duration>

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