data/mathoid/87.mml
<math
xmlns="http://www.w3.org/1998/Math/MathML" display="block" alttext="x 7">
<semantics>
<msub data-semantic-type="subscript" data-semantic-role="latinletter" data-semantic-id="2" data-semantic-children="0,1">
<mi data-semantic-type="identifier" data-semantic-role="latinletter" data-semantic-font="italic" data-semantic-id="0" data-semantic-parent="2">x</mi>
<mrow class="MJX-TeXAtom-ORD">
<mn data-semantic-type="number" data-semantic-role="integer" data-semantic-font="normal" data-semantic-id="1" data-semantic-parent="2">7</mn>
</mrow>
</msub>
<annotation encoding="application/x-tex">x_{7}</annotation>
</semantics>
</math>