Objects in the image:
category: person
category: traffic light
category: person
category: bench
category: person
category: person
category: car
category: truck
category: bench
category: bus

Guessing-game dialogue about one of the objects:
q: is it vehicle?
a: Yes
q: is it car?
a: N/A
q: is it red old type bus?
a: Yes
q: is it whole bus?
a: Yes