prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  go-winio
   +--internal
   |   +--fs
   |   +--socket
   |   `--stringbuffer
   `--pkg
       `--guid
  ```
  
  Convert this description:
  
  impl is a fundamental directory that encompasses 3 subdirectories: fixtures, inputs and isolated.
  At the top level, Inside 'fixtures', you'll find it contains no subdirectories.
  In the root directory, 'inputs' groups 2 subdirectory elements: process, undeclared.
  In nested path 'inputs → process', 'process' carries 1 directories: instrument.
  In nested path 'inputs > process > instrument', 'instrument' is unpopulated.
  In nested path 'inputs > undeclared', Inside 'undeclared', you'll find it is devoid of content.
  At the main level, Inside 'isolated', you'll find it contains no subdirectories.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "impl\n +--fixtures\n +--inputs\n |   +--process\n |   |   `--instrument\n |   `--undeclared\n `--isolated", "description": "impl is a fundamental directory that encompasses 3 subdirectories: fixtures, inputs and isolated.\nAt the top level, Inside 'fixtures', you'll find it contains no subdirectories.\nIn the root directory, 'inputs' groups 2 subdirectory elements: process, undeclared.\nIn nested path 'inputs \u2192 process', 'process' carries 1 directories: instrument.\nIn nested path 'inputs > process > instrument', 'instrument' is unpopulated.\nIn nested path 'inputs > undeclared', Inside 'undeclared', you'll find it is devoid of content.\nAt the main level, Inside 'isolated', you'll find it contains no subdirectories.\n"}