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

Guessing-game dialogue about one of the objects:
q: Is it pole holding wires?
a: No
q: Is it a railcar?
a: No
q: Is it the engine?
a: No
q: Is it the track?
a: No
q: Is it the switch?
a: No
q: Is it the poles behind train?
a: No
q: is it a tree?
a: No
q: is it white?
a: No
q: is it a person?
a: Yes
q: Are they seen through right window of train?
a: No
q: Are they seen through left window of train?
a: Yes