prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  node-fs-extra
   +--docs
   +--lib
   |   +--__tests__
   |   +--copy
   |   |   `--__tests__
   |   |       `--ncp
   |   |           `--fixtures
   |   |               +--modified-files
   |   |               |   +--out
   |   |               |   `--src
   |   |               `--regular-fixtures
  ```
  
  Convert this description:
  
  bigger_applications is a origin directory that contains 3 subdirectories: app, app_an and app_an_py39.
  At the main level, Within 'app', you'll find 2 contained folders for code structure.
  In nested path 'app → internal', Inside 'internal', you'll find it appears to be unused.
  In nested path 'app → routers', Inside 'routers', you'll find it holds no subdirectories at the moment.
  In the root directory, 'app_an' hosts 2 subdirectories: internal, routers.
  In nested path 'app_an > internal', The 'internal' compartment has yet to be populated.
  Within directory hierarchy 'app_an / routers', The 'routers' repository is blank.
  At the top level, 'app_an_py39' keeps 2 child directories: internal, routers.
  In nested path 'app_an_py39 / internal', Inside 'internal', you'll find it remains unused.
  In nested path 'app_an_py39 > routers', 'routers' awaits content.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "bigger_applications\n +--app\n |   +--internal\n |   `--routers\n +--app_an\n |   +--internal\n |   `--routers\n `--app_an_py39\n     +--internal\n     `--routers", "description": "bigger_applications is a origin directory that contains 3 subdirectories: app, app_an and app_an_py39.\nAt the main level, Within 'app', you'll find 2 contained folders for code structure.\nIn nested path 'app \u2192 internal', Inside 'internal', you'll find it appears to be unused.\nIn nested path 'app \u2192 routers', Inside 'routers', you'll find it holds no subdirectories at the moment.\nIn the root directory, 'app_an' hosts 2 subdirectories: internal, routers.\nIn nested path 'app_an > internal', The 'internal' compartment has yet to be populated.\nWithin directory hierarchy 'app_an / routers', The 'routers' repository is blank.\nAt the top level, 'app_an_py39' keeps 2 child directories: internal, routers.\nIn nested path 'app_an_py39 / internal', Inside 'internal', you'll find it remains unused.\nIn nested path 'app_an_py39 > routers', 'routers' awaits content.\n"}