Student B: A blue scarf? Hmm, not right here. Whose scarf is it?

Student A: It's mine. I wore it last night.

Student B: Oh, I think I saw a blue scarf on the coat rack in the hallway. Maybe it's yours?

Student A: Oh, great! I'll go check. Thanks! Oh, wait a minute... Whose glasses are these on the table? They look familiar.

Student B: Those are definitely his. I saw him take them off earlier.

Student A: His? Whose are they?

Student B: They belong to David. He was looking for them before.

Student A: Ah, okay. I'll let him know I found them. And hey, whose notebook is this open on the sofa? It has some interesting drawings in it.

Student B: That must be hers. She's always sketching.

Student A: Hers? Whose notebook is it?