@_ = (
       '3a|3b|3c|3d'
     );
  at play.pl line 18.
some text ###RAND{1a|###RAND{2a|2b|2c|3c|2d}|1b|1c|1d} some text
@_ = (
       '2a|2b|2c|3c|2d'
     );
  at play.pl line 18.
some text ###RAND{1a|2b|1b|1c|1d} some text
@_ = (
       '1a|2b|1b|1c|1d'
     );
  at play.pl line 18.
some text 1d some text
some text 1d some text