Diagram(
  Choice(0,
    Sequence(Choice(0, Terminal('STRING'), Terminal('THROW')),
             OneOrMore(Choice(0, NonTerminal('common_option'), NonTerminal('function_option')))),
    Sequence(Terminal('ERROR'),
             OneOrMore(Choice(0, NonTerminal('common_option'), NonTerminal('function_option'),
                              NonTerminal('exit_option')))),
    Sequence(Terminal('SYSLOG'),
             OneOrMore(Choice(0, NonTerminal('common_option'), NonTerminal('function_option'),
                              NonTerminal('syslog_option')))),
    Sequence(Terminal('STREAMABLE'),
             OneOrMore(Choice(0, NonTerminal('common_option'), NonTerminal('class_option')))),
    Sequence(Terminal('EXCEPTION'),
             OneOrMore(Choice(0, NonTerminal('common_option'), NonTerminal('class_option'),
                              NonTerminal('override_option')))))
)