ing
                      <a data-cite="MathML3/chapter3.html#presm.mprescripts">`mprescripts`</a>
                      element if any;
                    </li>
                    <li>
                      <code>AXMathPrescripts</code> is an array of dictionaries of <code>AXMathSubscript</code> and <code>AXMathSupscript</code> pointing to presubscript and presupscript elements,
                      i.e. N and N + 1 in-flow children starting after
                      <a data-cite="MathML3/chapter3.htm