prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  main
   +--java
   |   `--org
   |       `--gradle
   |           `--sample
   `--webapp
  ```
  
  Convert this description:
  
  prefetch-auto-route-groups is a core directory that contains 2 subdirectories: (dashboard) and sub.
  In the root directory, '(dashboard)' sits empty.
  At the top level, 'sub' includes 2 child directories: bar, foo.
  Within directory hierarchy 'sub / bar', Inside 'bar', you'll find it is devoid of content.
  At level 2, in directory path 'sub / foo', 'foo' has no folders inside.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "prefetch-auto-route-groups\n +--(dashboard)\n `--sub\n     +--bar\n     `--foo", "description": "prefetch-auto-route-groups is a core directory that contains 2 subdirectories: (dashboard) and sub.\nIn the root directory, '(dashboard)' sits empty.\nAt the top level, 'sub' includes 2 child directories: bar, foo.\nWithin directory hierarchy 'sub / bar', Inside 'bar', you'll find it is devoid of content.\nAt level 2, in directory path 'sub / foo', 'foo' has no folders inside.\n"}