Objects in the image:
category: person
category: backpack
category: car
category: person
category: bicycle
category: car
category: backpack
category: person
category: person
category: person
category: sports ball
category: person
category: car
category: car
category: bench
category: person
category: person

Guessing-game dialogue about one of the objects:
q: person ..?
a: No
q: ball ..?
a: No
q: vehicle ..?
a: Yes
q: any of the background cars?
a: Yes
q: right white?
a: Yes