Utterance-based reference chain

Round 1 (go to game round)

A: Two men sitting on a train, looking out a window. There are people outside with umbrellas.

Round 2 (go to game round)

B: i have 2 men sitting in a train where one is napping and the other is looking out the window

Round 3 (go to game round)

A: Two men looking out a window on a train, with a group of people and umbrellas

Round 4 (go to game round)

A: And two men looking out a window, one napping