digraph G {
 rankdir=TB
 node [shape=box, fontsize=9, height=0.1, width=0.05 ]
 edge [arrowsize=0.5, len=0.1]
"HelloSystem\n"->"Greeting\nSalutation\ninvitation\n"
"Greeting\nSalutation\ninvitation\n"->"Greeting\nSalutation\n"
"Greeting\nSalutation\ninvitation\n"->"invitation\n"
"Greeting\nSalutation\n"->"Greeting\n"
"Greeting\nSalutation\n"->"Salutation\n"
"Greeting\n"->"hour\ngreeting_text\n"
"Salutation\n"->"gender\nmartial_status\nsalutation_text\nage\n"
"gender\nmartial_status\nsalutation_text\nage\n"->"gender\nmartial_status\nage\n"
"gender\nmartial_status\nsalutation_text\nage\n"->"salutation_text\n"
"hour\ngreeting_text\n"->"hour\n"
"hour\ngreeting_text\n"->"greeting_text\n"
"gender\nmartial_status\nage\n"->"gender\n"
"gender\nmartial_status\nage\n"->"martial_status\n"
"gender\nmartial_status\nage\n"->"age\n"
}