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

Guessing-game dialogue about one of the objects:
q: person ??
a: No
q: black train in front of us?
a: No
q: is it on the right?
a: Yes
q: green color right edge closer to us?
a: No
q: the one next to it in brown?
a: No