Objects in the image:
category: person
category: car
category: person
category: person
category: car
category: bicycle
category: person
category: person
category: fire hydrant
category: truck

Guessing-game dialogue about one of the objects:
q: the red hydrant in front?
a: No
q: a vehicle?
a: No
q: a person?
a: Yes
q: one of the two persons in the right?
a: Yes
q: the one near the truck?
a: Yes