prompt: Your task is to convert the following English description into an ASCII tree format.
  
  guide is a primary directory that maintains 3 subdirectories: advanced, concepts and getting-started.
  In the root directory, 'advanced' keeps 3 nested folders: fixed-layout, free-layout, variable.
  Within directory hierarchy 'advanced > fixed-layout', 'fixed-layout' awaits content.
  In nested path 'advanced / free-layout', 'free-layout' contains nothing at present.
  At level 2, in directory path 'advanced / variable', Inside 'variable', you'll find it contains nothing at present.
  Back to the top level.
  In the root directory, Inside 'concepts', you'll find it holds no subdirectories at the moment.
  At the main level, Inside 'getting-started', you'll find it appears to be unused.
  
  
  Format your response in this style:
  ```
  tokens
   +--record-and-tuple-babel-7
   |   +--brace-bar
   |   +--brace-hash
   |   +--bracket-bar
   |   `--bracket-hash
   +--template-string
   |   +--basic
   |   +--invalid-octal
   |   `--invalid-unicode-escape-codepoint
   `--template-string-babel-7
       +--basic
       +--invalid-octal
       `--invalid-unicode-escape-codepoint
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "guide\n +--advanced\n |   +--fixed-layout\n |   +--free-layout\n |   `--variable\n +--concepts\n `--getting-started", "description": "guide is a primary directory that maintains 3 subdirectories: advanced, concepts and getting-started.\nIn the root directory, 'advanced' keeps 3 nested folders: fixed-layout, free-layout, variable.\nWithin directory hierarchy 'advanced > fixed-layout', 'fixed-layout' awaits content.\nIn nested path 'advanced / free-layout', 'free-layout' contains nothing at present.\nAt level 2, in directory path 'advanced / variable', Inside 'variable', you'll find it contains nothing at present.\nBack to the top level.\nIn the root directory, Inside 'concepts', you'll find it holds no subdirectories at the moment.\nAt the main level, Inside 'getting-started', you'll find it appears to be unused.\n"}