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

Guessing-game dialogue about one of the objects:
q: is it a train?
a: No
q: is it a person?
a: Yes
q: is it train tracks?
a: No
q: is it a train signal?
a: No
q: is it part of the building on the left?
a: No
q: is it in the background?
a: Yes
q: is it a building?
a: No
q: is it a car?
a: No
q: is it yellow?
a: No
q: is it a light?
a: No
q: is it to the right of the right hand train track?
a: No