[EGrouped [EGrouped [EIdentifier "x",ESymbol Op "-",EBinary "\\frac" (ENumber "1") (ENumber "3"),ESymbol Op "-",EBinary "\\frac" (EIdentifier "x") (ENumber "3"),ESymbol Op "-",EBinary "\\frac" (ENumber "3") (EIdentifier "x"),ESymbol Op "-",EBinary "\\frac" (EIdentifier "a") (EIdentifier "x"),ESymbol Op "-",EBinary "\\frac" (EIdentifier "y") (EIdentifier "x"),ESymbol Op "-",EBinary "\\frac" (ESub (EIdentifier "y") (ENumber "2")) (EIdentifier "x"),ESymbol Op "-",EBinary "\\frac" (ESub (EIdentifier "x") (ENumber "2")) (EIdentifier "x"),ESymbol Op "-",EBinary "\\frac" (EIdentifier "y") (ESuper (EIdentifier "x") (ENumber "2")),ESymbol Op "-",EBinary "\\frac" (EIdentifier "y") (ESuper (EIdentifier "H") (ENumber "2"))]]]