prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  contrib
   +--admin
   |   `--_images
   +--gis
   |   `--install
   `--postgres
  ```
  
  Convert this description:
  
  revalidate is a core directory that houses 2 subdirectories: app and pages.
  At the main level, Inside 'app', you'll find it is barren.
  At the top level, 'pages' has 1 folders: api.
  In nested path 'pages → api', Inside 'api', you'll find it has no content.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "revalidate\n +--app\n `--pages\n     `--api", "description": "revalidate is a core directory that houses 2 subdirectories: app and pages.\nAt the main level, Inside 'app', you'll find it is barren.\nAt the top level, 'pages' has 1 folders: api.\nIn nested path 'pages \u2192 api', Inside 'api', you'll find it has no content.\n"}