[EFraction NormalFrac (ENumber "1") (EIdentifier "a"),ESymbol Bin "-",EFraction NormalFrac (ENumber "1") (EGrouped [EIdentifier "a",ESymbol Bin "+",EIdentifier "a",ESymbol Bin "+",EIdentifier "a",ESymbol Bin "+",EIdentifier "a"]),ESymbol Bin "-",EFraction NormalFrac (ENumber "1") (EGrouped [EIdentifier "a",ESymbol Bin "+",EIdentifier "a",ESymbol Bin "+",EIdentifier "a",ESymbol Bin "+",EIdentifier "a",ESymbol Bin "+",EIdentifier "a",ESymbol Bin "+",EIdentifier "a",ESymbol Bin "+",EIdentifier "a",ESymbol Bin "+",EIdentifier "a",ESymbol Bin "+",EIdentifier "a",ESymbol Bin "+",EIdentifier "a"])]
