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

Guessing-game dialogue about one of the objects:
q: person ??
a: Yes
q: standing on the tanker?
a: No
q: blue uniform?
a: No
q: light grey uniform?
a: Yes
q: first from left?
a: No
q: 2nd from left?
a: No
q: 3rd from left?
a: Yes