prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  request
   +--examples
   +--lib
   `--tests
       +--browser
       |   `--ssl
       +--fixtures
       `--ssl
           `--ca
  ```
  
  Convert this description:
  
  app-tw is a origin directory that maintains 2 subdirectories: js and ts.
  In the root directory, 'js' incorporates 2 subdirectories: app, public.
  In nested path 'js / app', 'app' is a vacant space.
  At level 2, in directory path 'js > public', The 'public' compartment is empty.
  At the top level, 'ts' houses 2 directories: app, public.
  Within directory hierarchy 'ts → app', 'app' remains unused.
  Within directory hierarchy 'ts > public', 'public' awaits content.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "app-tw\n +--js\n |   +--app\n |   `--public\n `--ts\n     +--app\n     `--public", "description": "app-tw is a origin directory that maintains 2 subdirectories: js and ts.\nIn the root directory, 'js' incorporates 2 subdirectories: app, public.\nIn nested path 'js / app', 'app' is a vacant space.\nAt level 2, in directory path 'js > public', The 'public' compartment is empty.\nAt the top level, 'ts' houses 2 directories: app, public.\nWithin directory hierarchy 'ts \u2192 app', 'app' remains unused.\nWithin directory hierarchy 'ts > public', 'public' awaits content.\n"}