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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: Are they on the right platform?
a: No
q: are they driving the train?
a: No
q: are they on the left platform?
a: Yes
q: are they wearing blue?
a: No
q: Are they by the fourth white column from the left?
a: Yes
q: is it the person closest to the column in that group?
a: Yes