texmath-0.7: tests/readers/mml/msubsup-10.native
[ESubsup (EIdentifier "p") (EIdentifier "x") (ENumber "3"),ESymbol Rel "=",EUnder False (ESubsup (EIdentifier "p") (EIdentifier "x") (ENumber "3")) (EPhantom (EText TextNormal "l"))]
[ESubsup (EIdentifier "p") (EIdentifier "x") (ENumber "3"),ESymbol Rel "=",EUnder False (ESubsup (EIdentifier "p") (EIdentifier "x") (ENumber "3")) (EPhantom (EText TextNormal "l"))]