<<< native
[ EFraction NormalFrac (ENumber "9") (ENumber "14")
, ESymbol Rel "="
, EFraction NormalFrac (ENumber "9") (ENumber "14")
, EFraction
    NormalFrac
    (EPhantom
       (EFraction
          NormalFrac (EPhantom (ENumber "1")) (EPhantom (ENumber "2"))))
    (EPhantom
       (EFraction
          NormalFrac (EPhantom (ENumber "1")) (EPhantom (ENumber "2"))))
]
>>> eqn
9 over 14 = 9 over 14 {hphantom {{hphantom 1} over {hphantom 2}}} over {hphantom {{hphantom 1} over {hphantom 2}}}