msqrt-08.test

<<< native
[ ESqrt (EIdentifier "content")
, ESymbol Rel "="
, ESqrt
    (ESub (EIdentifier "content") (EPhantom (EIdentifier "fail")))
, ESymbol Rel "="
, ESqrt
    (ESuper (EIdentifier "content") (EPhantom (EIdentifier "fail")))
]
>>> tex
\sqrt{content} = \sqrt{{content}_{\phantom{fail}}} = \sqrt{{content}^{\phantom{fail}}}