digraph G {
  concentrate = true

  main [ shape = folder ]

  quick_bliss [ shape = folder ]
  long_form_bliss [ shape = folder ]
  check_db [ shape = folder ]
  iq [ shape = folder ]

  get_list [ shape = component ]
  get_all [ shape = component ]
  quit [ shape = component ]
  markdown_maker [ shape = component ]
  pdb [ shape = component ]

  main -> quick_bliss
  main -> long_form_bliss
  main -> check_db
  main -> quit

  quick_bliss -> markdown_maker
  quick_bliss -> pdb
  quick_bliss -> main

  long_form_bliss -> markdown_maker
  long_form_bliss -> main

  check_db -> get_all
  check_db -> get_list
  check_db -> main

  get_all -> pdb
  get_all -> check_db

  get_list -> pdb
  get_list -> iq

  iq -> pdb
  iq -> check_db
}