Objects in the image:
category: car
category: traffic light
category: traffic light
category: backpack
category: person
category: person
category: person
category: traffic light
category: person
category: person
category: person
category: person
category: person
category: traffic light
category: person
category: backpack
category: car
category: person
category: bus
category: person

Guessing-game dialogue about one of the objects:
q: is a vehicle?
a: No
q: is human?
a: Yes
q: one of the two near the bus?
a: Yes
q: front one black?
a: Yes