prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  app
   +--(bar)
   |   `--bar
   `--(foo)
       `--foo
  ```
  
  Convert this description:
  
  with-storybook is a origin directory that includes 3 subdirectories: app, public and stories.
  At the main level, 'app' has no folders inside.
  In the root directory, 'public' remains unused.
  At the main level, 'stories' retains 1 directories: assets.
  In nested path 'stories > assets', 'assets' is unpopulated.
  Back to the top level.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "with-storybook\n +--app\n +--public\n `--stories\n     `--assets", "description": "with-storybook is a origin directory that includes 3 subdirectories: app, public and stories.\nAt the main level, 'app' has no folders inside.\nIn the root directory, 'public' remains unused.\nAt the main level, 'stories' retains 1 directories: assets.\nIn nested path 'stories > assets', 'assets' is unpopulated.\nBack to the top level.\n"}