Objects in the image:
category: backpack
category: handbag
category: suitcase
category: person
category: backpack
category: airplane
category: truck
category: handbag
category: airplane
category: car
category: handbag
category: person
category: truck
category: person
category: truck
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is a person?
a: No
q: is a car?
a: No
q: is a plane?
a: No
q: is a engine?
a: Yes
q: in front of us?
a: Yes