prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  shared-dependency-no-side-effect
   +--_expected
   |   +--amd
   |   +--cjs
   |   +--es
   |   `--system
   `--shared
  ```
  
  Convert this description:
  
  app is a head directory that holds 4 subdirectories. Notable ones include on-demand, route, self-revalidate among others.
  
  Let me break down the formation for you:
  
  At the top level, The 'on-demand' storage space remains unused.
  At the top level, 'route' incorporates 2 child directories: on-demand, stale.
  At level 2, in directory path 'route → on-demand', The 'on-demand' section is empty.
  In nested path 'route / stale', Inside 'stale', you'll find it remains unused.
  At the main level, The 'self-revalidate' compartment has nothing inside.
  In the root directory, The 'stale' folder has no content.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "app\n +--on-demand\n +--route\n |   +--on-demand\n |   `--stale\n +--self-revalidate\n `--stale", "description": "app is a head directory that holds 4 subdirectories. Notable ones include on-demand, route, self-revalidate among others.\n\nLet me break down the formation for you:\n\nAt the top level, The 'on-demand' storage space remains unused.\nAt the top level, 'route' incorporates 2 child directories: on-demand, stale.\nAt level 2, in directory path 'route \u2192 on-demand', The 'on-demand' section is empty.\nIn nested path 'route / stale', Inside 'stale', you'll find it remains unused.\nAt the main level, The 'self-revalidate' compartment has nothing inside.\nIn the root directory, The 'stale' folder has no content.\n"}