prompt: Your task is to convert the following English description into an ASCII tree format.
  
  main is a principal directory that encompasses 2 subdirectories: java and webapp.
  In the root directory, 'java' comprises 1 directory entries: org.
  In nested path 'java / org', 'org' holds 1 subdirectories: gradle.
  At level 3, in directory path 'java / org / gradle', 'gradle' retains 1 child directories: sample.
  In nested path 'java > org > gradle > sample', The 'sample' data structure is blank.
  At the top level, 'webapp' stands empty.
  
  
  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": "main\n +--java\n |   `--org\n |       `--gradle\n |           `--sample\n `--webapp", "description": "main is a principal directory that encompasses 2 subdirectories: java and webapp.\nIn the root directory, 'java' comprises 1 directory entries: org.\nIn nested path 'java / org', 'org' holds 1 subdirectories: gradle.\nAt level 3, in directory path 'java / org / gradle', 'gradle' retains 1 child directories: sample.\nIn nested path 'java > org > gradle > sample', The 'sample' data structure is blank.\nAt the top level, 'webapp' stands empty.\n"}