Utterance-based reference chain

Round 1 (go to game round)

A: How bout two men in train or bus looking on people with umbrellas.

Round 3 (go to game round)

B: two men on a train looking out at an umbrella

Round 4 (go to game round)

A: Then the two men looking out with the other people having umbrellas.

Round 5 (go to game round)

B: another one with 2 men looking at umbrellas