content/test/data/accessibility/mathml/msubsup.html

<!DOCTYPE html>
<!--
@AURALINUX-ALLOW:tag:*
@UIA-WIN-ALLOW:MathML=*
-->
<math>
  <msubsup class="test">
    <mn>1</mn>
    <mn>2</mn>
    <mn>3</mn>
  </msubsup>
</math>