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

Guessing-game dialogue about one of the objects:
q: Is it the fire truck?
a: No
q: is it human?
a: Yes
q: Is it on the truck?
a: Yes
q: is it looking through the window?
a: Yes
q: is he seen through the rear window of the truck cabin?
a: Yes