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

Guessing-game dialogue about one of the objects:
q: a person?
a: Yes
q: climbing or touching the train?
a: Yes
q: in right half of picture?
a: Yes
q: is it the first one right after the numbers "173" and "2"?
a: Yes