Objects in the image:
category: person
category: clock
category: backpack
category: person
category: person
category: person
category: person
category: person
category: handbag
category: person
category: dog
category: traffic light
category: train
category: person
category: person
category: person
category: bench

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: is it the train?
a: No
q: is it a bag?
a: No
q: is it the clock?
a: No
q: is it a bench?
a: No
q: is it a dog?
a: No
q: is it a vehicle?
a: No
q: is it a traffic light?
a: No
q: is it a sign?
a: No
q: is it the building in the background?
a: Yes