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

Guessing-game dialogue about one of the objects:
q: is it bus?
a: No
q: is it truck?
a: No
q: is it a person?
a: Yes
q: is it the driver?
a: No
q: is it sitting on window side?
a: No
q: is it visible from front?
a: Yes
q: is it behind the driver?
a: Yes
q: the 1st one?
a: No
q: the 2nd one?
a: No
q: is it 3rd?
a: Yes