<<< native
[ EText TextNormal "Inline, text style, thick line\160"
, EGrouped
    [ EFraction
        NormalFrac
        (EGrouped
           [ ESuper (EIdentifier "x") (ENumber "2")
           , ESymbol Bin "+"
           , ENumber "1"
           ])
        (EIdentifier "x")
    , EFraction
        NormalFrac
        (EGrouped
           [ ESuper (EIdentifier "x") (ENumber "2")
           , ESymbol Bin "+"
           , ENumber "1"
           ])
        (EIdentifier "x")
    ]
, EText TextNormal "\160the end."
]
>>> eqn
roman "Inline, text style, thick line " {{x sup 2 + 1} over x {x sup 2 + 1} over x} roman " the end."