>a dialog between two characters
> - A, B, C, D, E
> - wait, say that again!
> - E?
> - no, before that!
> - B?
> - after that!
> - C?
> - that's it!
> - A, B, C, D, E
> - wait, say that again!
> - E?
> - no, before that!
> - B?
> - after that!
> - C?
> - that's it!