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

Guessing-game dialogue about one of the objects:
q: Is it a person?
a: No
q: Is it a train?
a: Yes
q: Is it the train near us with #4706 on it?
a: No
q: Is there a train in this image?
a: No
q: Is it the train on far left side of photo?
a: Yes
q: Is it the whole train?
a: Yes