[Edward and Elinor are baiting Margaret, who is playfully hiding]
Edward Ferrars: I, eh, wish to check the position of the Nile. My sister tells me it is in South America.
Elinor Dashwood: Oh. No. No, um, she's quite wrong, um, for I believe it is in Belgium.
Edward Ferrars: Belgium. Surely not, I think you must be thinking of the Volga.
Margaret: [under the table] The Volga?
Elinor Dashwood: Of course, the Volga, which, as you know, starts in...
Edward Ferrars: Vladivostock, and ends in...
Elinor Dashwood: Wimbledon.
Edward Ferrars: Precisely. Where the coffee beans come from.
Margaret: [coming out] Ugh! The source of the Nile is in Abyssinia.