Objects in the image:
category: traffic light
category: person
category: person
category: backpack
category: person
category: person
category: person
category: umbrella
category: umbrella
category: person
category: person
category: person
category: bottle
category: person
category: person
category: person
category: person
category: person
category: umbrella

Guessing-game dialogue about one of the objects:
q: is it a person?
a: No
q: umbrella ??
a: No
q: traffic light?
a: Yes
q: Is it the one with the red/orange lights flashing?
a: Yes