[<state> start]-> [<input> Welcome to Sarafu; Select language]
[Welcome to Sarafu; Select language]-> [<choice> 1. English]
[1. English]-> yes [change language to english]
[change language to english]-> [<reference> initial pin entry]
[1. English]->  no [<choice> 2. Kiswahili]
[2. Kiswahili]-> yes [change language to kiswahili]
[change language to kiswahili]-> [initial pin entry]
[2. Kiswahili]-> no [<choice> 3. Help]
[3. Help]-> yes [<reference> help]
[3. Help]-> no [<reference> exit invalid menu option]