<!doctype html>
<html>
  <head>
    <title>annotation children</title>
    <meta charset="utf-8"/>
  </head>
  <body>

    <!-- This verifies that the annotation element can only contain text content -->

    <p><math><semantics><csymbol>Content MathML</csymbol><annotation>PA<mtext>ERROR</mtext>SS</annotation></semantics></math></p>

  </body>
</html>