Where is NIna?

Ben: We're gonna run some errands. I'm gonna drive, and Mama's gonna sit in the other front seat.
Me: You are gonna drive?
Ben: No... Nina's gonna drive.
Me: Nina? Where is she? Is she home?
Ben (repeating what he's heard us say): She's in Indi-apolis. She's diong well.
--after a moment's pause-- She's with her friends.
Me: What's her friend's name?
Ben: Ruthie. That's what her friend is called.