Objects in the image:
category: traffic light
category: traffic light
category: traffic light
category: traffic light
category: traffic light

Guessing-game dialogue about one of the objects:
q: is it a light?
a: Yes
q: is it green light?
a: No
q: is in the top of the picture?
a: No
q: is it signal light?
a: Yes
q: in the second post?
a: Yes