Objects in the image:
category: backpack
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: person
category: backpack
category: suitcase
category: person
category: backpack
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: they in uniform?
a: Yes
q: are they on the ground?
a: Yes
q: are they standing up?
a: No
q: do they have their back against a wall?
a: Yes