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

Guessing-game dialogue about one of the objects:
q: Is it a vehicle?
a: No
q: Is it a person?
a: Yes
q: Is it the person on the right by the tanker?
a: No
q: Is it one of the 3 in front of the police cars?
a: No
q: are they in a police car?
a: Yes
q: driver of the car nearest us?
a: Yes