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

Guessing-game dialogue about one of the objects:
q: is it a train?
a: No
q: is it a Person?
a: Yes
q: on the left?
a: No
q: Is it on the train?
a: Yes
q: the first person on the left?
a: No
q: the 2nd person?
a: No
q: the 3 rd person?
a: Yes