prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  tests
   +--client_certs
   |   `--password_protected
   +--fixtures
   |   +--session_data
   |   |   +--new
   |   |   `--old
   |   `--xmldata
   |       +--invalid
   |       +--valid
   |       `--xhtml
   `--utils
       `--matching
  ```
  
  Convert this description:
  
  src is a root directory that contains 3 subdirectories: backend, database and utils.
  In the root directory, 'backend' possesses 1 nested folders: operation.
  Within directory hierarchy 'backend → operation', The 'operation' container has been left empty.
  Back to the top level.
  At the main level, 'database' shelters 1 subfolders: lmdb.
  At level 2, in directory path 'database / lmdb', Inside 'lmdb', you'll find it stands empty.
  At the top level, The 'utils' collection is unpopulated.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "src\n +--backend\n |   `--operation\n +--database\n |   `--lmdb\n `--utils", "description": "src is a root directory that contains 3 subdirectories: backend, database and utils.\nIn the root directory, 'backend' possesses 1 nested folders: operation.\nWithin directory hierarchy 'backend \u2192 operation', The 'operation' container has been left empty.\nBack to the top level.\nAt the main level, 'database' shelters 1 subfolders: lmdb.\nAt level 2, in directory path 'database / lmdb', Inside 'lmdb', you'll find it stands empty.\nAt the top level, The 'utils' collection is unpopulated.\n"}