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

Guessing-game dialogue about one of the objects:
q: is it plane?
a: No
q: is it vehicle?
a: No
q: is it person?
a: Yes
q: is it front of airplane?
a: No