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

Guessing-game dialogue about one of the objects:
q: is it bus?
a: No
q: is it person?
a: No
q: is it traffic light?
a: Yes
q: showing green?
a: Yes