Objects in the image:
category: person
category: person
category: traffic light
category: bench
category: truck
category: bench
category: stop sign
category: dog
category: bicycle
category: umbrella
category: person
category: person

Guessing-game dialogue about one of the objects:
q: person ??
a: No
q: dog ??
a: No
q: bench ??
a: No
q: the white ambulance on the left?
a: Yes