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

Guessing-game dialogue about one of the objects:
q: Is it a subway car?
a: No
q: Is it a light?
a: No
q: Is it a number?
a: No
q: Is it a door?
a: No
q: Is it a window?
a: No
q: Is it the floor?
a: No
q: Is it on the ceiling?
a: No
q: Is it a wall?
a: No