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

Guessing-game dialogue about one of the objects:
q: is it a plane?
a: No
q: is it a luggage tractor?
a: Yes
q: is it in foreground?
a: Yes
q: is it in center?
a: Yes