<<< mml Inline, text style, thick line  x 2 + 1 x x 2 + 1 x  the end. >>> 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." ]