CHICO: Why a duck?
GROUCHO: I'm all right. How are you? I say here is a little peninsula and here is a viaduct leading over to the mainland.
CHICO: All right, why a duck?
GROUCHO: I'm not playing ask me another. I say that's a viaduct.
CHICO: All right, why a duck? Why a duck, why-a no chicken?
GROUCHO: Well, I don't know why-a no chicken. I'm a stranger here myself. All I know is that it's a viaduct. You try to cross over there a chicken and you'll find out vy-a-duck.
CHICO: When I go someplace I just—
GROUCHO: It's deep water, that's vy-a-duck. Deep water. Look, look suppose you were out horseback riding and you came to that stream, and you wanted to ford over. You couldn't make it. It's too deep.
CHICO: What-a you want with a Ford if you gotta horse?
GROUCHO: Well, I'm sorry the matter ever came up. All I know is that it's a viaduct.