<<< native [ ESuper (EIdentifier "x") (ENumber "1") , ESymbol Bin "+" , ESuper (EIdentifier "x") (EIdentifier "a") , ESymbol Bin "+" , ESuper (EIdentifier "H") (EIdentifier "a") , ESymbol Bin "+" , ESuper (EIdentifier "H") (ENumber "1") , ESymbol Bin "+" , ESubsup (EIdentifier "x") (ENumber "1") (ENumber "2") , ESymbol Bin "+" , ESubsup (EIdentifier "x") (EIdentifier "a") (ENumber "2") , ESymbol Bin "+" , ESubsup (EIdentifier "x") (ENumber "1") (EIdentifier "x") , ESymbol Bin "+" , ESubsup (EIdentifier "x") (EIdentifier "a") (EIdentifier "x") , ESymbol Bin "+" , ESubsup (EIdentifier "H") (ENumber "1") (ENumber "2") , ESymbol Bin "+" , ESubsup (EIdentifier "H") (EIdentifier "a") (ENumber "2") , ESymbol Bin "+" , ESubsup (EIdentifier "H") (ENumber "1") (EIdentifier "x") , ESymbol Bin "+" , ESubsup (EIdentifier "H") (EIdentifier "a") (EIdentifier "x") ] >>> tex x^{1} + x^{a} + H^{a} + H^{1} + x_{1}^{2} + x_{a}^{2} + x_{1}^{x} + x_{a}^{x} + H_{1}^{2} + H_{a}^{2} + H_{1}^{x} + H_{a}^{x}