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  1. or download this
    my $grammar = q{
  list : '(' item(s) ')' { $item[2] }
...
       | word
  word : /[^()]*/  
};
  2. or download this
    my $grammar = <<'__END_OF_GRAMMAR__';

...
  word : /[^()]*/  

__END_OF_GRAMMAR__
  3. or download this
    my $grammar = <<'__END_OF_GRAMMAR__';
  {
...
  word : /[^()]*/  

__END_OF_GRAMMAR__
  4. or download this
      list : item(s)
  item : '(' <commit> list ')' { $item[3] }
       | word
  word : /[^()]*/
  5. or download this
      list : item(s?)
  item : '(' <commit> list ')' { $item[3] }
       | word
  word : /[^()]+/