Objects in the image:
category: traffic light
category: person
category: person
category: person
category: traffic light
category: train
category: person

Guessing-game dialogue about one of the objects:
q: train ??
a: No
q: light ??
a: N/A
q: person ??
a: No
q: Is it an signage pole?
a: Yes
q: with blue?
a: No
q: the white one before the tunnel?
a: No
q: the white one at the back of the train?
a: No
q: on the left of the train?
a: Yes
q: red light closest to the train?
a: No