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

Guessing-game dialogue about one of the objects:
q: is a plane?
a: No
q: is a ground vehicle?
a: Yes
q: is in the bottom right corner?
a: No
q: is yellow vehicle next to air bridge on the left?
a: No
q: is it the vehicle next to it on the right?
a: No
q: the 2 white vehicles to the right?
a: No
q: is it behind the left wing of the plane?
a: Yes
q: is it one of the baggage cars on white line?
a: No
q: is it within the white line bounded area behind the wing?
a: No
q: is it the vehicle to the left of this area?
a: No
q: is it further back in the background?
a: Yes
q: is it near a plane in the background?
a: Yes
q: is it the plane in the back just left of foreground plane?
a: No
q: is it the plane back from the middle of foreground plane wing?
a: Yes
q: is the vehicle under wing on left side of that plane?
a: Yes