Objects in the image:
category: person
category: person
category: traffic light
category: truck
category: person
category: person
category: car

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: is it car?
a: No
q: is it signal?
a: Yes
q: is it whole part?
a: No
q: is it top one?
a: Yes
q: is it red light in right?
a: Yes