Segment-based reference chain

Round 1 (go to game round)

B: do you have a white cake that is about to be cut with a green knife

A: No

Round 3 (go to game round)

A: Tall round cake with white icing about to be sliced?

B: yes

Round 4 (go to game round)

B: white cake about to be cut with a knife

A: Yes.