Non-terminal symbol `SortSymbols`

Defining rules for nonterminal symbol SortSymbols:

`SortSymbols`		`SortSymbol`
		`SortSymbol` '`,`' `SortSymbols`

Occurrences of symbol SortSymbols in body of other rules:

IsaDeclarationStatement SortSymbols ISA SortSymbols

Non-terminal symbol SortSymbols