statement : SEP? keyword SEP? (argument)? SEP? (SEMICOLON | LEFT_BRACE SEP? (statement)* SEP? RIGHT_BRACE SEP?) SEP?;
keyword : (IDENTIFIER COLON)? IDENTIFIER;
-argument : STRING | IDENTIFIER | STRING (SEP? PLUS SEP? STRING)*;
\ No newline at end of file
+argument : STRING (SEP? PLUS SEP? STRING)* | IDENTIFIER;
\ No newline at end of file