prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  image-optimizer
   +--app
   |   +--pages
   |   |   `--api
   |   |       `--stateful
   |   `--public
   `--test
  ```
  
  Convert this description:
  
  core is a head directory that organizes 4 subdirectories. Notable ones include config, helpers, plugins among others.
  
  Let me break down the ordering for you:
  
  At the main level, 'config' houses 1 child directories: type-cast.
  At level 2, in directory path 'config / type-cast', 'type-cast' is an empty container.
  Back to the top level.
  In the root directory, Inside 'helpers', you'll find it remains unused.
  At the main level, 'plugins' stores 12 some contained folders.
  In nested path 'plugins / auth', 'auth' carries 2 directories: configs-extensions, spec-extensions.
  At level 3, in directory path 'plugins / auth / configs-extensions', The 'configs-extensions' folder lacks any subdirectories.
  Within directory hierarchy 'plugins > auth > spec-extensions', The 'spec-extensions' storage space is barren.
  In nested path 'plugins > configs', 'configs' contains nothing at present.
  In nested path 'plugins / err', 'err' encapsulates 1 child directories: transformers.
  At level 3, in directory path 'plugins > err > transformers', 'transformers' is unpopulated.
  In nested path 'plugins → filter', 'filter' has no folders inside.
  In nested path 'plugins / json-schema-2020-12-samples', The 'json-schema-2020-12-samples' directory is empty.
  Within directory hierarchy 'plugins > json-schema-5', 'json-schema-5' has 1 contained folders: components.
  Within directory hierarchy 'plugins > json-schema-5 > components', 'components' remains unused.
  Within directory hierarchy 'plugins > json-schema-5-samples', 'json-schema-5-samples' retains 1 contained folders: fn.
  In nested path 'plugins > json-schema-5-samples > fn', 'fn' sits empty.
  At level 2, in directory path 'plugins / oas3', The 'oas3' data structure is vacant.
  Within directory hierarchy 'plugins > oas31', 'oas31' carries 1 contained folders: components.
  At level 3, in directory path 'plugins → oas31 → components', The 'components' compartment has been left empty.
  At level 2, in directory path 'plugins > safe-render', 'safe-render' is barren.
  Within directory hierarchy 'plugins → spec', 'spec' carries 1 test-related directories.
  In nested path 'plugins → spec → assets', The 'assets' data structure is devoid of content.
  Within directory hierarchy 'plugins / swagger-js', Inside 'swagger-js', you'll find it hasn't been filled with any content.
  In the root directory, The 'system' directory is blank.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "core\n +--config\n |   `--type-cast\n +--helpers\n +--plugins\n |   +--auth\n |   |   +--configs-extensions\n |   |   `--spec-extensions\n |   +--configs\n |   +--err\n |   |   `--transformers\n |   +--filter\n |   +--json-schema-2020-12-samples\n |   +--json-schema-5\n |   |   `--components\n |   +--json-schema-5-samples\n |   |   `--fn\n |   +--oas3\n |   +--oas31\n |   |   `--components\n |   +--safe-render\n |   +--spec\n |   |   `--assets\n |   `--swagger-js\n `--system", "description": "core is a head directory that organizes 4 subdirectories. Notable ones include config, helpers, plugins among others.\n\nLet me break down the ordering for you:\n\nAt the main level, 'config' houses 1 child directories: type-cast.\nAt level 2, in directory path 'config / type-cast', 'type-cast' is an empty container.\nBack to the top level.\nIn the root directory, Inside 'helpers', you'll find it remains unused.\nAt the main level, 'plugins' stores 12 some contained folders.\nIn nested path 'plugins / auth', 'auth' carries 2 directories: configs-extensions, spec-extensions.\nAt level 3, in directory path 'plugins / auth / configs-extensions', The 'configs-extensions' folder lacks any subdirectories.\nWithin directory hierarchy 'plugins > auth > spec-extensions', The 'spec-extensions' storage space is barren.\nIn nested path 'plugins > configs', 'configs' contains nothing at present.\nIn nested path 'plugins / err', 'err' encapsulates 1 child directories: transformers.\nAt level 3, in directory path 'plugins > err > transformers', 'transformers' is unpopulated.\nIn nested path 'plugins \u2192 filter', 'filter' has no folders inside.\nIn nested path 'plugins / json-schema-2020-12-samples', The 'json-schema-2020-12-samples' directory is empty.\nWithin directory hierarchy 'plugins > json-schema-5', 'json-schema-5' has 1 contained folders: components.\nWithin directory hierarchy 'plugins > json-schema-5 > components', 'components' remains unused.\nWithin directory hierarchy 'plugins > json-schema-5-samples', 'json-schema-5-samples' retains 1 contained folders: fn.\nIn nested path 'plugins > json-schema-5-samples > fn', 'fn' sits empty.\nAt level 2, in directory path 'plugins / oas3', The 'oas3' data structure is vacant.\nWithin directory hierarchy 'plugins > oas31', 'oas31' carries 1 contained folders: components.\nAt level 3, in directory path 'plugins \u2192 oas31 \u2192 components', The 'components' compartment has been left empty.\nAt level 2, in directory path 'plugins > safe-render', 'safe-render' is barren.\nWithin directory hierarchy 'plugins \u2192 spec', 'spec' carries 1 test-related directories.\nIn nested path 'plugins \u2192 spec \u2192 assets', The 'assets' data structure is devoid of content.\nWithin directory hierarchy 'plugins / swagger-js', Inside 'swagger-js', you'll find it hasn't been filled with any content.\nIn the root directory, The 'system' directory is blank.\n"}