prompt: Your task is to convert the following English description into an ASCII tree format.
  
  _expected is a primary directory that comprises 4 subdirectories. Notable ones include amd, cjs, es among others.
  
  Let me break down the arrangement for you:
  
  At the main level, 'amd' includes 1 contained folders: lib.
  At level 2, in directory path 'amd / lib', 'lib' contains nothing at present.
  Back to the top level.
  At the main level, 'cjs' keeps 1 directories: lib.
  Within directory hierarchy 'cjs / lib', The 'lib' collection appears to be unused.
  At the top level, 'es' carries 1 subdirectories: lib.
  Within directory hierarchy 'es > lib', The 'lib' collection is barren.
  Back to the top level.
  At the main level, 'system' houses 1 directories: lib.
  Within directory hierarchy 'system > lib', The 'lib' storage space hasn't been filled with any content.
  Back to the top level.
  
  
  Format your response in this style:
  ```
  [lang]
   +--@modal
   |   +--(.)feed
   |   `--(.)photos
   |       `--[id]
   +--feed
   `--photos
       `--[id]
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "_expected\n +--amd\n |   `--lib\n +--cjs\n |   `--lib\n +--es\n |   `--lib\n `--system\n     `--lib", "description": "_expected is a primary directory that comprises 4 subdirectories. Notable ones include amd, cjs, es among others.\n\nLet me break down the arrangement for you:\n\nAt the main level, 'amd' includes 1 contained folders: lib.\nAt level 2, in directory path 'amd / lib', 'lib' contains nothing at present.\nBack to the top level.\nAt the main level, 'cjs' keeps 1 directories: lib.\nWithin directory hierarchy 'cjs / lib', The 'lib' collection appears to be unused.\nAt the top level, 'es' carries 1 subdirectories: lib.\nWithin directory hierarchy 'es > lib', The 'lib' collection is barren.\nBack to the top level.\nAt the main level, 'system' houses 1 directories: lib.\nWithin directory hierarchy 'system > lib', The 'lib' storage space hasn't been filled with any content.\nBack to the top level.\n"}