prompt: Your task is to convert an English description into an ASCII tree format using this style:
  ```
  contrib
   +--admin
   |   `--_images
   +--gis
   |   `--install
   `--postgres
  ```
  
  Convert this description:
  
  ssh is a master directory that houses 3 subdirectories: agent, internal and knownhosts.
  In the root directory, Inside 'agent', you'll find it is unpopulated.
  In the root directory, 'internal' features 1 contained folders: bcrypt_pbkdf.
  At level 2, in directory path 'internal → bcrypt_pbkdf', 'bcrypt_pbkdf' is currently empty.
  Back to the top level.
  At the top level, 'knownhosts' remains unused.
  
  
  Provide your answer wrapped in <ascii_formatted> tags.
verification_info: {"ground_truth": "ssh\n +--agent\n +--internal\n |   `--bcrypt_pbkdf\n `--knownhosts", "description": "ssh is a master directory that houses 3 subdirectories: agent, internal and knownhosts.\nIn the root directory, Inside 'agent', you'll find it is unpopulated.\nIn the root directory, 'internal' features 1 contained folders: bcrypt_pbkdf.\nAt level 2, in directory path 'internal \u2192 bcrypt_pbkdf', 'bcrypt_pbkdf' is currently empty.\nBack to the top level.\nAt the top level, 'knownhosts' remains unused.\n"}