Objects in the image:
category: traffic light
category: traffic light
category: traffic light
category: backpack
category: person
category: traffic light
category: person
category: person
category: person
category: skateboard
category: person
category: traffic light
category: car
category: car
category: traffic light
category: traffic light

Guessing-game dialogue about one of the objects:
q: is it a person?
a: Yes
q: is it the person with the red helmet?
a: Yes