prompt: Your task is to convert the following English description into an ASCII tree format.
  
  tool-chains is a core directory that collects 2 subdirectories: groovy and tests.
  In the root directory, 'groovy' contains 1 subfolders: src.
  Within directory hierarchy 'groovy / src', The 'src' section holds 1 folders for code organization.
  At level 3, in directory path 'groovy / src / main', 'main' keeps 1 subfolders: cpp.
  Within directory hierarchy 'groovy / src / main / cpp', 'cpp' has been left empty.
  At the top level, The 'tests' repository is barren.
  
  
  Format your response in this style:
  ```
  node_modules
   +--@somenamespace
   |   `--eslint-formatter-foo
   `--eslint-formatter-bar
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "tool-chains\n +--groovy\n |   `--src\n |       `--main\n |           `--cpp\n `--tests", "description": "tool-chains is a core directory that collects 2 subdirectories: groovy and tests.\nIn the root directory, 'groovy' contains 1 subfolders: src.\nWithin directory hierarchy 'groovy / src', The 'src' section holds 1 folders for code organization.\nAt level 3, in directory path 'groovy / src / main', 'main' keeps 1 subfolders: cpp.\nWithin directory hierarchy 'groovy / src / main / cpp', 'cpp' has been left empty.\nAt the top level, The 'tests' repository is barren.\n"}