Spring Has Sprung

Costello: Oh yeah, a lot of funny names. I know all those guys.

Abbott: Well, let's see now. We have on our team: Who's on first, What's on second, I Don't Know's on third.

Costello: That's what I want to find out, the guys' names.

Abbott: I'm telling you: Who's on first, What's on second, I Don't Know's on third.

Costello: You're going to be the manager of a baseball team?

Abbott: Yes.

Costello: You know the guys' names?

Abbott: Well, I should.

Costello: Will you tell me the guys' names on the baseball team?

Abbott: I say: Who's on first. What's on second, I Don't Know's on third.