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:
  
  circl is a head directory that collects 5 subdirectories. Notable ones include dh, ecc, internal among others.
  
  Let me break down the system for you:
  
  In the root directory, 'dh' keeps 2 child directories: x25519, x448.
  Within directory hierarchy 'dh > x25519', The 'x25519' repository is vacant.
  In nested path 'dh → x448', Inside 'x448', you'll find it awaits content.
  Back to the top level.
  At the main level, 'ecc' maintains 1 directory entries: goldilocks.
  At level 2, in directory path 'ecc / goldilocks', Inside 'goldilocks', you'll find it has nothing inside.
  At the top level, 'internal' incorporates 2 directory entries: conv, sha3.
  In nested path 'internal / conv', The 'conv' collection is currently empty.
  At level 2, in directory path 'internal / sha3', Inside 'sha3', you'll find it contains nothing at present.
  Back to the top level.
  In the root directory, 'math' retains 3 subfolders: fp25519, fp448, mlsbset.
  In nested path 'math > fp25519', Inside 'fp25519', you'll find it has no folders inside.
  In nested path 'math / fp448', The 'fp448' section hasn't been filled with any content.
  In nested path 'math > mlsbset', The 'mlsbset' folder has yet to be populated.
  At the main level, 'sign' has 2 subdirectory elements: ed25519, ed448.
  At level 2, in directory path 'sign > ed25519', 'ed25519' is empty.
  At level 2, in directory path 'sign → ed448', 'ed448' awaits content.
  Back to the top level.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "circl\n +--dh\n |   +--x25519\n |   `--x448\n +--ecc\n |   `--goldilocks\n +--internal\n |   +--conv\n |   `--sha3\n +--math\n |   +--fp25519\n |   +--fp448\n |   `--mlsbset\n `--sign\n     +--ed25519\n     `--ed448", "description": "circl is a head directory that collects 5 subdirectories. Notable ones include dh, ecc, internal among others.\n\nLet me break down the system for you:\n\nIn the root directory, 'dh' keeps 2 child directories: x25519, x448.\nWithin directory hierarchy 'dh > x25519', The 'x25519' repository is vacant.\nIn nested path 'dh \u2192 x448', Inside 'x448', you'll find it awaits content.\nBack to the top level.\nAt the main level, 'ecc' maintains 1 directory entries: goldilocks.\nAt level 2, in directory path 'ecc / goldilocks', Inside 'goldilocks', you'll find it has nothing inside.\nAt the top level, 'internal' incorporates 2 directory entries: conv, sha3.\nIn nested path 'internal / conv', The 'conv' collection is currently empty.\nAt level 2, in directory path 'internal / sha3', Inside 'sha3', you'll find it contains nothing at present.\nBack to the top level.\nIn the root directory, 'math' retains 3 subfolders: fp25519, fp448, mlsbset.\nIn nested path 'math > fp25519', Inside 'fp25519', you'll find it has no folders inside.\nIn nested path 'math / fp448', The 'fp448' section hasn't been filled with any content.\nIn nested path 'math > mlsbset', The 'mlsbset' folder has yet to be populated.\nAt the main level, 'sign' has 2 subdirectory elements: ed25519, ed448.\nAt level 2, in directory path 'sign > ed25519', 'ed25519' is empty.\nAt level 2, in directory path 'sign \u2192 ed448', 'ed448' awaits content.\nBack to the top level.\n"}