texmath-0.13.1.2: test/reader/mml/msubsup-02.test

<<< mml
<?xml version="1.0" encoding="UTF-8"?>

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">  <msubsup>    <mrow>      <mphantom>        <mi>z</mi>
      </mphantom>
      <mi>S</mi>
    </mrow>     <mi>t</mi>     <mn>7</mn>   </msubsup>   <mo>=</mo>   <msubsup>    <mi>S</mi>     <mi>t</mi>     <mn>7</mn>   </msubsup> </math>
>>> native
[ ESubsup
    (EGrouped [ EPhantom (EIdentifier "z") , EIdentifier "S" ])
    (EIdentifier "t")
    (ENumber "7")
, ESymbol Rel "="
, ESubsup (EIdentifier "S") (EIdentifier "t") (ENumber "7")
]