Objects in the image:
category: airplane
category: person
category: airplane
category: car
category: airplane
category: person

Guessing-game dialogue about one of the objects:
q: can it fly?
a: No
q: is it a building?
a: No
q: is the object on the building?
a: No
q: is it the object on one of the plane?
a: No
q: is it the road or one of the object on the road?
a: Yes
q: is it the yellow line on the road?
a: No
q: is it a shadow?
a: No
q: is it a living thing?
a: Yes
q: is it the person with the 2 legs behind the plane?
a: Yes