<?xml version="1.0" encoding="UTF-8"?>
<html xmlns='http://www.w3.org/1999/xhtml'>
  <head>
    <title>Subscript and Superscripts</title>
    <script>
    if (window.testRunner)
      testRunner.dumpAsText();
    </script>
  </head>
  <body>
    <math id="m1" xmlns='http://www.w3.org/1998/Math/MathML'>
      <mtext>This test passes if the page has no other text.</mtext>
      <msubsup id="m2">
        <mi id="m3">Z</mi>
        <mrow id="m4"><mi id="m5">x</mi><mo id="m6">+</mo><mi id="m7">y</mi><mo id="m8">+</mo><mi id="m9">z</mi></mrow>
        <mi id="m10">j</mi>
      </msubsup>
    </math>
    <script>
    try {
      document.getElementById("m2").textContent=undefined;
    } catch(e) {document.write("Error: " + e.name + ": " + e.message + + " for " + i);}
    </script>
  </body>
</html>