Utterance-based reference chain

Round 1 (go to game round)

A: I have two men on a train with a black and white umbrella out of the window

Round 2 (go to game round)

B: 2 men inside a train looking out at 2 people with umbresllas, one is black and one is black/white

Round 4 (go to game round)

A: men with umbrellas outside

Round 5 (go to game round)

A: men with umbrellas outside window