prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  tests
   +--client_certs
   |   `--password_protected
   +--fixtures
   |   +--session_data
   |   |   +--new
   |   |   `--old
   |   `--xmldata
   |       +--invalid
   |       +--valid
   |       `--xhtml
   `--utils
       `--matching
  ```
  
  Convert this description:
  
  base is a head directory that incorporates 3 subdirectories: internal, plugins and sources.
  In the root directory, 'internal' holds 2 folders: registry, tasks.
  At level 2, in directory path 'internal > registry', Inside 'registry', you'll find it is vacant.
  In nested path 'internal / tasks', 'tasks' is an empty container.
  Back to the top level.
  At the main level, Inside 'plugins', you'll find it has no folders inside.
  At the main level, Inside 'sources', you'll find it has yet to be populated.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "base\n +--internal\n |   +--registry\n |   `--tasks\n +--plugins\n `--sources", "description": "base is a head directory that incorporates 3 subdirectories: internal, plugins and sources.\nIn the root directory, 'internal' holds 2 folders: registry, tasks.\nAt level 2, in directory path 'internal > registry', Inside 'registry', you'll find it is vacant.\nIn nested path 'internal / tasks', 'tasks' is an empty container.\nBack to the top level.\nAt the main level, Inside 'plugins', you'll find it has no folders inside.\nAt the main level, Inside 'sources', you'll find it has yet to be populated.\n"}