prompt: Your task is to convert the following English description into an ASCII tree format.
  
  1.7.0 is a principal directory that encompasses 2 subdirectories: include and lib.
  In the root directory, 'include' retains 1 subdirectory elements: gtest.
  At level 2, in directory path 'include → gtest', 'gtest' holds 1 test-related directories.
  Within directory hierarchy 'include > gtest > internal', The 'internal' data structure lacks any subdirectories.
  Back to the top level.
  In the root directory, 'lib' groups 6 subdirectories that organize the source code.
  Within directory hierarchy 'lib → cygwin', 'cygwin' is vacant.
  In nested path 'lib / linux', Inside 'linux', you'll find it is vacant.
  Within directory hierarchy 'lib → mingw', The 'mingw' storage space is currently empty.
  Within directory hierarchy 'lib → osx', Inside 'osx', you'll find it is vacant.
  At level 2, in directory path 'lib > vs2010', The 'vs2010' directory remains unused.
  In nested path 'lib / vs2013', The 'vs2013' repository has no content.
  
  
  Format your response in this style:
  ```
  main
   +--java
   |   `--org
   |       `--gradle
   |           `--sample
   `--webapp
  ```
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "1.7.0\n +--include\n |   `--gtest\n |       `--internal\n `--lib\n     +--cygwin\n     +--linux\n     +--mingw\n     +--osx\n     +--vs2010\n     `--vs2013", "description": "1.7.0 is a principal directory that encompasses 2 subdirectories: include and lib.\nIn the root directory, 'include' retains 1 subdirectory elements: gtest.\nAt level 2, in directory path 'include \u2192 gtest', 'gtest' holds 1 test-related directories.\nWithin directory hierarchy 'include > gtest > internal', The 'internal' data structure lacks any subdirectories.\nBack to the top level.\nIn the root directory, 'lib' groups 6 subdirectories that organize the source code.\nWithin directory hierarchy 'lib \u2192 cygwin', 'cygwin' is vacant.\nIn nested path 'lib / linux', Inside 'linux', you'll find it is vacant.\nWithin directory hierarchy 'lib \u2192 mingw', The 'mingw' storage space is currently empty.\nWithin directory hierarchy 'lib \u2192 osx', Inside 'osx', you'll find it is vacant.\nAt level 2, in directory path 'lib > vs2010', The 'vs2010' directory remains unused.\nIn nested path 'lib / vs2013', The 'vs2013' repository has no content.\n"}