[EArray [AlignDefault] [[[EGrouped [EIdentifier "x",ESymbol Bin "-",EFraction NormalFrac (EIdentifier "a") (EIdentifier "b"),EIdentifier "x"]]],[[EGrouped [EIdentifier "x",ESymbol Bin "-",EFraction NormalFrac (ENumber "1") (EIdentifier "b"),EIdentifier "x"]]],[[EGrouped [EIdentifier "x",ESymbol Bin "-",EFraction NormalFrac (ENumber "1") (ENumber "2"),EIdentifier "x"]]],[[EGrouped [EIdentifier "x",ESymbol Bin "-",EFraction NormalFrac (ESuper (ENumber "1") (ENumber "2")) (EIdentifier "z"),EIdentifier "x"]]],[[EGrouped [EIdentifier "x",ESymbol Bin "-",EFraction NormalFrac (EIdentifier "z") (ESuper (ENumber "1") (ENumber "2")),EIdentifier "x"]]]]]
