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

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is the person on the left side of the train as you look at the photo?
a: No
q: I see four people on the other side of the train.  Is it the person with the white top and green bottoms?
a: Yes