I want the ol back

Sofi (crying): I want the ol back!
Dada: You want the old back?
Sofi: I made one with my hand. (Holds up 'O' shape.)
Dada: Oh, you want the O back? Where'd you leave it? Does mama know where it is?
Sofi: There's an O! (Points to digital clock: it's now 9:10.)