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

Guessing-game dialogue about one of the objects:
q: is it traffic light?
a: Yes
q: is it one among whose light is on?
a: Yes
q: is it a single light?
a: Yes
q: is it part of light in front of us?
a: No
q: on back there is a single light whose red in on...is it a part from this light?
a: Yes
q: there is L shape appears in that light is it horizontal lower part?
a: No
q: can i guess now?
a: Yes